diff --git a/release_notes.md b/release_notes.md
index 0e20cf130..213191fb1 100644
--- a/release_notes.md
+++ b/release_notes.md
@@ -1,4 +1,6 @@
 ###In Development
+  - [#320](https://github.com/MehdiK/Humanizer/pull/320): Fixed Dehumanize actually humanizing an already dehumanized string
+
 [Commits](https://github.com/MehdiK/Humanizer/compare/v1.28.0...master)
 
 ###v1.28.0 - 2014-07-06
diff --git a/src/Humanizer.Tests/StringDehumanizeTests.cs b/src/Humanizer.Tests/StringDehumanizeTests.cs
index caaed20bd..9e5574d8b 100644
--- a/src/Humanizer.Tests/StringDehumanizeTests.cs
+++ b/src/Humanizer.Tests/StringDehumanizeTests.cs
@@ -10,6 +10,7 @@ public class StringDehumanizeTests
         [InlineData("Title Case Sentence Is Camelized", "TitleCaseSentenceIsCamelized")]
         [InlineData("Mixed case sentence Is Camelized", "MixedCaseSentenceIsCamelized")]
         [InlineData("lower case sentence is camelized", "LowerCaseSentenceIsCamelized")]
+        [InlineData("AlreadyDehumanizedStringIsUntouched", "AlreadyDehumanizedStringIsUntouched")]
         [InlineData("", "")]
         public void CanDehumanizeIntoAPascalCaseWord(string input, string expectedResult)
         {
diff --git a/src/Humanizer/StringDehumanizeExtensions.cs b/src/Humanizer/StringDehumanizeExtensions.cs
index 64c485d6d..53998dd4a 100644
--- a/src/Humanizer/StringDehumanizeExtensions.cs
+++ b/src/Humanizer/StringDehumanizeExtensions.cs
@@ -18,7 +18,7 @@ public static string Dehumanize(this string input)
                 (from word in input.Split(' ')
                 select word.Humanize(LetterCasing.Title));
 
-            return string.Join("", titlizedWords);
+            return string.Join("", titlizedWords).Replace(" ", "");
         }
     }
 }