diff --git a/Effects/model-combined-deferred.eff b/Effects/model-combined-deferred.eff
index 716220bbf..43fa258a7 100644
--- a/Effects/model-combined-deferred.eff
+++ b/Effects/model-combined-deferred.eff
@@ -25,7 +25,6 @@ the objects that use it, and replaces it with the default shader.
 			<extension-supported>GL_ARB_fragment_shader</extension-supported>
 		  </and>
 		</or>
-		<extension-supported>GL_EXT_gpu_shader4</extension-supported>
 	  </and>
 	</predicate>
 	<pass>
diff --git a/Effects/transition.eff b/Effects/transition.eff
index e1fcf18bb..43a1e0a96 100644
--- a/Effects/transition.eff
+++ b/Effects/transition.eff
@@ -106,7 +106,6 @@ parameters :
 						<extension-supported>GL_ARB_fragment_shader</extension-supported>
 					</and>
 				</or>
-				<extension-supported>GL_EXT_gpu_shader4</extension-supported>
 			</and>
 		</predicate>
 
diff --git a/Effects/water-inland.eff b/Effects/water-inland.eff
index e8484d7e4..04a2da753 100644
--- a/Effects/water-inland.eff
+++ b/Effects/water-inland.eff
@@ -523,7 +523,6 @@
 						<extension-supported>GL_ARB_fragment_shader</extension-supported>
 					</and>
 				</or>
-				<extension-supported>GL_EXT_gpu_shader4</extension-supported>
 			</and>
 		</predicate>
 		<pass>
diff --git a/Effects/water.eff b/Effects/water.eff
index 7c37c96e6..d7a5ea264 100644
--- a/Effects/water.eff
+++ b/Effects/water.eff
@@ -523,7 +523,6 @@
                        <extension-supported>GL_ARB_fragment_shader</extension-supported>
                    </and>
                </or>
-               <extension-supported>GL_EXT_gpu_shader4</extension-supported>
            </and>
        </predicate>
        <pass>
@@ -913,7 +912,6 @@
                                <extension-supported>GL_ARB_fragment_shader</extension-supported>
                            </and>
                        </or>
-                       <extension-supported>GL_EXT_gpu_shader4</extension-supported>
                    </and>
                </predicate>
                <pass>