diff --git a/kwin/build.sh b/kwin/build.sh
index 92e861c..4f1926b 100755
--- a/kwin/build.sh
+++ b/kwin/build.sh
@@ -40,8 +40,14 @@ generate() {
   sed -e "s;%NICK%;$1;g" -e "s;%NAME%;$2;g" -e "s;%DESCRIPTION%;$3;g" \
     main.js.in > "${BUILD_DIR}/kwin4_effect_$1/contents/code/main.js"
 
-  SHADER="${BUILD_DIR}/kwin4_effect_$1/contents/shaders/$1.glsl"
-  cp "../resources/shaders/$1.glsl" $SHADER
+  SHADER="${BUILD_DIR}/kwin4_effect_$1/contents/shaders/$1.frag"
+  echo "#version 140"                                                      > $SHADER
+  echo "#define KWIN"                                                      >> $SHADER
+  echo ""                                                                  >> $SHADER
+  echo "// This file is automatically generated during the build process." >> $SHADER
+  echo ""                                                                  >> $SHADER
+  cat "../resources/shaders/common.glsl"                                   >> $SHADER
+  cat "../resources/shaders/$1.frag"                                       >> $SHADER
 }
 
 generate "tv" "TV Effect" "Make windows close like turning off a TV"