diff --git a/content/smil/nsSMILAnimationController.cpp b/content/smil/nsSMILAnimationController.cpp
index 3e870b311ea..9987ad57a11 100644
--- a/content/smil/nsSMILAnimationController.cpp
+++ b/content/smil/nsSMILAnimationController.cpp
@@ -744,6 +744,15 @@ nsSMILAnimationController::AddAnimationToCompositorTable(
   }
 }
 
+static inline bool
+IsTransformAttribute(int32_t aNamespaceID, nsIAtom *aAttributeName)
+{
+  return aNamespaceID == kNameSpaceID_None &&
+         (aAttributeName == nsGkAtoms::transform ||
+          aAttributeName == nsGkAtoms::patternTransform ||
+          aAttributeName == nsGkAtoms::gradientTransform);
+}
+
 // Helper function that, given a nsISMILAnimationElement, looks up its target
 // element & target attribute and populates a nsSMILTargetIdentifier
 // for this target.
@@ -767,6 +776,12 @@ nsSMILAnimationController::GetTargetIdentifierForAnimation(
     // Animation has no target attr -- skip it.
     return false;
 
+  // animateTransform can only animate transforms, conversely transforms
+  // can only be animated by animateTransform
+  if (IsTransformAttribute(attributeNamespaceID, attributeName) !=
+      aAnimElem->AsElement().IsSVG(nsGkAtoms::animateTransform))
+    return false;
+
   // Look up target (animated) attribute-type
   nsSMILTargetAttrType attributeType = aAnimElem->GetTargetAttributeType();
 
diff --git a/content/svg/content/src/SVGAnimateTransformElement.cpp b/content/svg/content/src/SVGAnimateTransformElement.cpp
index 278cfd523b2..14277ea4a82 100644
--- a/content/svg/content/src/SVGAnimateTransformElement.cpp
+++ b/content/svg/content/src/SVGAnimateTransformElement.cpp
@@ -81,20 +81,6 @@ SVGAnimateTransformElement::AnimationFunction()
   return mAnimationFunction;
 }
 
-bool
-SVGAnimateTransformElement::GetTargetAttributeName(int32_t *aNamespaceID,
-                                                   nsIAtom **aLocalName) const
-{
-  if (SVGAnimationElement::GetTargetAttributeName(aNamespaceID,
-                                                  aLocalName)) {
-    return *aNamespaceID == kNameSpaceID_None &&
-           (*aLocalName == nsGkAtoms::transform ||
-            *aLocalName == nsGkAtoms::patternTransform ||
-            *aLocalName == nsGkAtoms::gradientTransform);
-  }
-  return false;
-}
-
 } // namespace dom
 } // namespace mozilla
 
diff --git a/content/svg/content/src/SVGAnimateTransformElement.h b/content/svg/content/src/SVGAnimateTransformElement.h
index 6963d066f6f..4f03b6df3c0 100644
--- a/content/svg/content/src/SVGAnimateTransformElement.h
+++ b/content/svg/content/src/SVGAnimateTransformElement.h
@@ -50,8 +50,6 @@ public:
 
   // nsISMILAnimationElement
   virtual nsSMILAnimationFunction& AnimationFunction();
-  virtual bool GetTargetAttributeName(int32_t *aNamespaceID,
-                                      nsIAtom **aLocalName) const;
 
   virtual nsXPCClassInfo* GetClassInfo();
 
diff --git a/layout/reftests/svg/smil/transform/reftest.list b/layout/reftests/svg/smil/transform/reftest.list
index 36b52326755..44df92edd51 100644
--- a/layout/reftests/svg/smil/transform/reftest.list
+++ b/layout/reftests/svg/smil/transform/reftest.list
@@ -10,6 +10,7 @@ fuzzy-if(cocoaWidget&&layersGPUAccelerated,1,18) == paced-1.svg paced-1-ref.svg
 fuzzy-if(Android,16,2) == rotate-angle-4.svg rotate-angle-ref.svg
 == rotate-angle-5.svg rotate-angle-ref.svg
 == scale-1.svg scale-1-ref.svg
+== set-transform-1.svg lime.svg
 fuzzy-if(cocoaWidget&&layersGPUAccelerated,1,45) == skew-1.svg skew-1-ref.svg
 random-if(Android&&!browserIsRemote) == translate-clipPath-1.svg lime.svg # bug 760266
 fails-if(OSX==10.6) == translate-gradient-1.svg lime.svg
diff --git a/layout/reftests/svg/smil/transform/set-transform-1.svg b/layout/reftests/svg/smil/transform/set-transform-1.svg
new file mode 100644
index 00000000000..f698cbaa829
--- /dev/null
+++ b/layout/reftests/svg/smil/transform/set-transform-1.svg
@@ -0,0 +1,27 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<svg xmlns="http://www.w3.org/2000/svg"
+     xmlns:xlink="http://www.w3.org/1999/xlink"
+     class="reftest-wait">
+
+  <script xlink:href="../smil-util.js" type="text/javascript"/>
+  <script>
+    function doTest() {
+      setTimeAndSnapshot(101, false);
+    }
+    window.addEventListener("MozReftestInvalidate", doTest, false);
+  </script>
+
+  <rect width="100%" height="100%" fill="lime" />
+
+  <!-- Test 1: We shouldn't animate a transform attribute with set -->
+
+  <rect x="50" y="50" width="100" height="100" fill="red">
+    <set attributeName="transform" to="75,75" begin="100s"/>
+  </rect>
+
+  <rect x="50" y="50" width="100" height="100" fill="lime"/>
+
+</svg>