diff --git a/CHANGES.md b/CHANGES.md
index 1791f071487b..5762a03049b7 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -9,6 +9,7 @@ Change Log
 * Added CZML support for `polyline.depthFailMaterial`, `label.scaleByDistance`, `distanceDisplayCondition`, and `disableDepthTestDistance`. [#5986](https://github.com/AnalyticalGraphicsInc/cesium/pull/5986)
 * Fixed bug in KML LookAt bug where degrees and radians were mixing in a subtraction. [#5992](https://github.com/AnalyticalGraphicsInc/cesium/issues/5992)
 * Fixed handling of KMZ files with missing `xsi` namespace declarations. [#6003](https://github.com/AnalyticalGraphicsInc/cesium/pull/6003)
+* Fixed a language detection issue.  [#6016](https://github.com/AnalyticalGraphicsInc/cesium/pull/6016)
 * Fixed a bug where glTF models with animations of different lengths would cause an error. [#5694](https://github.com/AnalyticalGraphicsInc/cesium/issues/5694)
 * Added a `clampAnimations` parameter to `Model` and `Entity.model`. Setting this to `false` allows different length animations to loop asynchronously over the duration of the longest animation.
 * Fixed `Invalid asm.js: Invalid member of stdlib` console error by recompiling crunch.js with latest emscripten toolchain. [#5847](https://github.com/AnalyticalGraphicsInc/cesium/issues/5847)
diff --git a/Source/Scene/Label.js b/Source/Scene/Label.js
index 863dc80d3785..19fd2f7976a5 100644
--- a/Source/Scene/Label.js
+++ b/Source/Scene/Label.js
@@ -1311,9 +1311,9 @@ define([
         }
     }
 
-    //To add another language, simply add it's Unicode block range(s) to the below regex.
+    //To add another language, simply add its Unicode block range(s) to the below regex.
     var hebrew = '\u05D0-\u05EA';
-    var arabic = '\u0600-\u06FF\u0750–\u077F\u08A0–\u08FF';
+    var arabic = '\u0600-\u06FF\u0750-\u077F\u08A0-\u08FF';
     var rtlChars = new RegExp('[' + hebrew + arabic + ']');
 
     /**
diff --git a/Specs/Scene/LabelCollectionSpec.js b/Specs/Scene/LabelCollectionSpec.js
index f54eda7c1b40..251f2d23fbac 100644
--- a/Specs/Scene/LabelCollectionSpec.js
+++ b/Specs/Scene/LabelCollectionSpec.js
@@ -1934,6 +1934,50 @@ defineSuite([
 
             expect(label.text).toEqual(expectedText);
         });
+
+        it('detects characters in the range \\u05D0-\\u05EA', function() {
+            var text = '\u05D1\u05D2';
+            var expectedText = '\u05D2\u05D1';
+            var label = labels.add({
+                text : text
+            });
+
+            expect(label.text).toEqual(text);
+            expect(label._renderedText).toEqual(expectedText);
+        });
+
+        it('detects characters in the range \\u0600-\\u06FF', function() {
+            var text = '\u0601\u0602';
+            var expectedText = '\u0602\u0601';
+            var label = labels.add({
+                text : text
+            });
+
+            expect(label.text).toEqual(text);
+            expect(label._renderedText).toEqual(expectedText);
+        });
+
+        it('detects characters in the range \\u0750-\\u077F', function() {
+            var text = '\u0751\u0752';
+            var expectedText = '\u0752\u0751';
+            var label = labels.add({
+                text : text
+            });
+
+            expect(label.text).toEqual(text);
+            expect(label._renderedText).toEqual(expectedText);
+        });
+
+        it('detects characters in the range \\u08A0-\\u08FF', function() {
+            var text = '\u08A1\u08A2';
+            var expectedText = '\u08A2\u08A1';
+            var label = labels.add({
+                text : text
+            });
+
+            expect(label.text).toEqual(text);
+            expect(label._renderedText).toEqual(expectedText);
+        });
     });
 
     it('computes bounding sphere in 3D', function() {