diff --git a/include/osg/Matrixd b/include/osg/Matrixd
index aa4dafb90..03ef6aa2f 100644
--- a/include/osg/Matrixd
+++ b/include/osg/Matrixd
@@ -311,6 +311,10 @@ class OSG_EXPORT Matrixd
 #endif
 
         void setRotate(const Quat& q);
+        /** Get the matrix rotation as a Quat. Note that this function
+          * assumes a non-scaled matrix and will return incorrect results
+          * for scaled matrixces. Consider decompose() instead.
+          */
         Quat getRotate() const;
 
         void setTrans( value_type tx, value_type ty, value_type tz );
diff --git a/include/osg/Matrixf b/include/osg/Matrixf
index 5bcf65059..b7a20c9fc 100644
--- a/include/osg/Matrixf
+++ b/include/osg/Matrixf
@@ -312,6 +312,10 @@ class OSG_EXPORT Matrixf
 #endif
 
         void setRotate(const Quat& q);
+        /** Get the matrix rotation as a Quat. Note that this function
+          * assumes a non-scaled matrix and will return incorrect results
+          * for scaled matrixces. Consider decompose() instead.
+          */
         Quat getRotate() const;