diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index 1d0be920..e132b963 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -5540,12 +5540,12 @@ getJasmineRequireObj().MatchersUtil = function(j$) {
     }
 
     // Deep compare objects.
-    var aKeys = keys(a, className == '[object Array]'),
+    var aKeys = MatchersUtil.keys(a, className == '[object Array]'),
       key;
     size = aKeys.length;
 
     // Ensure that both objects contain the same number of properties before comparing deep equality.
-    if (keys(b, className == '[object Array]').length !== size) {
+    if (MatchersUtil.keys(b, className == '[object Array]').length !== size) {
       diffBuilder.recordMismatch(
         objectKeysAreDifferentFormatter.bind(null, this.pp)
       );
@@ -5581,7 +5581,7 @@ getJasmineRequireObj().MatchersUtil = function(j$) {
     return result;
   };
 
-  function keys(obj, isArray) {
+  MatchersUtil.keys = function(obj, isArray) {
     var allKeys = (function(o) {
       var keys = [];
       for (var key in o) {
@@ -5609,7 +5609,7 @@ getJasmineRequireObj().MatchersUtil = function(j$) {
     }
 
     return extraKeys;
-  }
+  };
 
   function isFunction(obj) {
     return typeof obj === 'function';
@@ -7643,7 +7643,7 @@ getJasmineRequireObj().makePrettyPrinter = function(j$) {
   };
 
   SinglePrettyPrintRun.prototype.iterateObject = function(obj, fn) {
-    var objKeys = keys(obj, j$.isArray_(obj));
+    var objKeys = j$.MatchersUtil.keys(obj, j$.isArray_(obj));
     var isGetter = function isGetter(prop) {};
 
     if (obj.__lookupGetter__) {
@@ -7838,8 +7838,14 @@ getJasmineRequireObj().makePrettyPrinter = function(j$) {
     property,
     isGetter
   ) {
-    this.append(property);
+    if (typeof property === 'symbol') {
+      this.append(property.toString());
+    } else {
+      this.append(property);
+    }
+
     this.append(': ');
+
     if (isGetter) {
       this.append('<getter>');
     } else {
@@ -7881,37 +7887,6 @@ getJasmineRequireObj().makePrettyPrinter = function(j$) {
 
   MaxCharsReachedError.prototype = new Error();
 
-  function keys(obj, isArray) {
-    var allKeys = Object.keys
-      ? Object.keys(obj)
-      : (function(o) {
-          var keys = [];
-          for (var key in o) {
-            if (j$.util.has(o, key)) {
-              keys.push(key);
-            }
-          }
-          return keys;
-        })(obj);
-
-    if (!isArray) {
-      return allKeys;
-    }
-
-    if (allKeys.length === 0) {
-      return allKeys;
-    }
-
-    var extraKeys = [];
-    for (var i = 0; i < allKeys.length; i++) {
-      if (!/^[0-9]+$/.test(allKeys[i])) {
-        extraKeys.push(allKeys[i]);
-      }
-    }
-
-    return extraKeys;
-  }
-
   function customFormat(value, customObjectFormatters) {
     var i, result;
 
diff --git a/spec/core/PrettyPrintSpec.js b/spec/core/PrettyPrintSpec.js
index 8d75c440..6d5046ab 100644
--- a/spec/core/PrettyPrintSpec.js
+++ b/spec/core/PrettyPrintSpec.js
@@ -84,6 +84,11 @@ describe('PrettyPrinter', function() {
       );
     });
 
+    it('includes symbols', function() {
+      const pp = jasmineUnderTest.makePrettyPrinter();
+      expect(pp([1, Symbol('foo'), 2])).toEqual('[ 1, Symbol(foo), 2 ]');
+    });
+
     it('should truncate arrays that are longer than jasmineUnderTest.MAX_PRETTY_PRINT_ARRAY_LENGTH', function() {
       const originalMaxLength = jasmineUnderTest.MAX_PRETTY_PRINT_ARRAY_LENGTH;
       const array = [1, 2, 3];
@@ -163,6 +168,25 @@ describe('PrettyPrinter', function() {
     );
   });
 
+  it('includes symbol keys in objects', function() {
+    const pp = jasmineUnderTest.makePrettyPrinter();
+    const obj = {};
+    obj[Symbol('foo')] = 'bar';
+    expect(pp(obj)).toEqual("Object({ Symbol(foo): 'bar' })");
+  });
+
+  it('stringifies string and symbol keys differently', function() {
+    const pp = jasmineUnderTest.makePrettyPrinter();
+    const symObj = {};
+    const strObj = {};
+    const k = 'foo';
+    const v = 'bar';
+    symObj[Symbol(k)] = v;
+    strObj[k] = v;
+
+    expect(pp(symObj)).not.toEqual(pp(strObj));
+  });
+
   it('should stringify objects that almost look like DOM nodes', function() {
     const pp = jasmineUnderTest.makePrettyPrinter();
     expect(pp({ nodeType: 1 })).toEqual('Object({ nodeType: 1 })');
diff --git a/src/core/PrettyPrinter.js b/src/core/PrettyPrinter.js
index 1903b469..81494813 100644
--- a/src/core/PrettyPrinter.js
+++ b/src/core/PrettyPrinter.js
@@ -106,7 +106,7 @@ getJasmineRequireObj().makePrettyPrinter = function(j$) {
   };
 
   SinglePrettyPrintRun.prototype.iterateObject = function(obj, fn) {
-    var objKeys = keys(obj, j$.isArray_(obj));
+    var objKeys = j$.MatchersUtil.keys(obj, j$.isArray_(obj));
     var isGetter = function isGetter(prop) {};
 
     if (obj.__lookupGetter__) {
@@ -301,8 +301,14 @@ getJasmineRequireObj().makePrettyPrinter = function(j$) {
     property,
     isGetter
   ) {
-    this.append(property);
+    if (typeof property === 'symbol') {
+      this.append(property.toString());
+    } else {
+      this.append(property);
+    }
+
     this.append(': ');
+
     if (isGetter) {
       this.append('<getter>');
     } else {
@@ -344,37 +350,6 @@ getJasmineRequireObj().makePrettyPrinter = function(j$) {
 
   MaxCharsReachedError.prototype = new Error();
 
-  function keys(obj, isArray) {
-    var allKeys = Object.keys
-      ? Object.keys(obj)
-      : (function(o) {
-          var keys = [];
-          for (var key in o) {
-            if (j$.util.has(o, key)) {
-              keys.push(key);
-            }
-          }
-          return keys;
-        })(obj);
-
-    if (!isArray) {
-      return allKeys;
-    }
-
-    if (allKeys.length === 0) {
-      return allKeys;
-    }
-
-    var extraKeys = [];
-    for (var i = 0; i < allKeys.length; i++) {
-      if (!/^[0-9]+$/.test(allKeys[i])) {
-        extraKeys.push(allKeys[i]);
-      }
-    }
-
-    return extraKeys;
-  }
-
   function customFormat(value, customObjectFormatters) {
     var i, result;
 
diff --git a/src/core/matchers/matchersUtil.js b/src/core/matchers/matchersUtil.js
index c6f297f2..774c7d9b 100644
--- a/src/core/matchers/matchersUtil.js
+++ b/src/core/matchers/matchersUtil.js
@@ -483,12 +483,12 @@ getJasmineRequireObj().MatchersUtil = function(j$) {
     }
 
     // Deep compare objects.
-    var aKeys = keys(a, className == '[object Array]'),
+    var aKeys = MatchersUtil.keys(a, className == '[object Array]'),
       key;
     size = aKeys.length;
 
     // Ensure that both objects contain the same number of properties before comparing deep equality.
-    if (keys(b, className == '[object Array]').length !== size) {
+    if (MatchersUtil.keys(b, className == '[object Array]').length !== size) {
       diffBuilder.recordMismatch(
         objectKeysAreDifferentFormatter.bind(null, this.pp)
       );
@@ -524,7 +524,7 @@ getJasmineRequireObj().MatchersUtil = function(j$) {
     return result;
   };
 
-  function keys(obj, isArray) {
+  MatchersUtil.keys = function(obj, isArray) {
     var allKeys = (function(o) {
       var keys = [];
       for (var key in o) {
@@ -552,7 +552,7 @@ getJasmineRequireObj().MatchersUtil = function(j$) {
     }
 
     return extraKeys;
-  }
+  };
 
   function isFunction(obj) {
     return typeof obj === 'function';