diff --git a/effects/cornerpin.frag b/effects/cornerpin.frag
index c75f18671..7dfbd6944 100644
--- a/effects/cornerpin.frag
+++ b/effects/cornerpin.frag
@@ -1,4 +1,4 @@
-#version 110
+#version 130
 
 uniform sampler2D tex;
 uniform bool perspective;
diff --git a/effects/cornerpin.vert b/effects/cornerpin.vert
index 391718f60..9f3783846 100644
--- a/effects/cornerpin.vert
+++ b/effects/cornerpin.vert
@@ -1,5 +1,4 @@
-#version 110
-#extension GL_EXT_gpu_shader4 : enable
+#version 130
 
 uniform bool perspective;
 uniform vec2 p0;