diff --git a/platform/commonUI/general/src/directives/MCTSplitPane.js b/platform/commonUI/general/src/directives/MCTSplitPane.js
index cb845ed1bd..0262d6f0a2 100644
--- a/platform/commonUI/general/src/directives/MCTSplitPane.js
+++ b/platform/commonUI/general/src/directives/MCTSplitPane.js
@@ -166,13 +166,14 @@ define(
                 // Getter-setter for the pixel offset of the splitter,
                 // relative to the current edge.
                 function getSetPosition(value) {
+                    var prior = position;
                     if (typeof value === 'number') {
                         position = value;
                         enforceExtrema();
                         updateElementPositions();
 
                         // Pass change up so this state can be shared
-                        if (positionParsed.assign) {
+                        if (positionParsed.assign && position !== prior) {
                             positionParsed.assign($scope, position);
                         }
                     }
diff --git a/platform/commonUI/general/src/directives/MCTSplitter.js b/platform/commonUI/general/src/directives/MCTSplitter.js
index 69db2f0a02..315a00fad2 100644
--- a/platform/commonUI/general/src/directives/MCTSplitter.js
+++ b/platform/commonUI/general/src/directives/MCTSplitter.js
@@ -57,7 +57,7 @@ define(
 
                         // Update the position of this splitter
                         newPosition =  initialPosition + pixelDelta;
-                        mctSplitPane.position(newPosition);
+                        mctSplitPane.position(initialPosition, newPosition);
                     },
                     // Grab the event when the user is done moving
                     // the splitter and pass it on
diff --git a/platform/commonUI/general/test/directives/MCTSplitterSpec.js b/platform/commonUI/general/test/directives/MCTSplitterSpec.js
index caf0fd468d..c0550d0975 100644
--- a/platform/commonUI/general/test/directives/MCTSplitterSpec.js
+++ b/platform/commonUI/general/test/directives/MCTSplitterSpec.js
@@ -94,7 +94,7 @@ define(
                     it("repositions during drag", function () {
                         mockScope.splitter.move([10, 0]);
                         expect(mockSplitPane.position)
-                            .toHaveBeenCalledWith(testPosition + 10);
+                            .toHaveBeenCalledWith(testPosition, testPosition + 10);
                     });
 
                     it("tell's the splitter when it is done resizing", function () {