diff --git a/src/osg/Uniform.cpp b/src/osg/Uniform.cpp
index 92b12a1fe..ef5e12cc1 100644
--- a/src/osg/Uniform.cpp
+++ b/src/osg/Uniform.cpp
@@ -151,8 +151,8 @@ void Uniform::allocateDataArray()
                 _int64Array = new Int64Array(arrayNumElements);
                 return;
 
-            case GL_UINT64_ARB:
-                _uintArray = new UInt64Array(arrayNumElements);
+            case GL_UNSIGNED_INT64_ARB:
+                _uint64Array = new UInt64Array(arrayNumElements);
                 return;
 
             default: