diff --git a/gst/gl/effects/gstgleffectssources.c b/gst/gl/effects/gstgleffectssources.c
index fcf32d36c0..b1b9ce01b3 100644
--- a/gst/gl/effects/gstgleffectssources.c
+++ b/gst/gl/effects/gstgleffectssources.c
@@ -280,9 +280,16 @@ const gchar *sobel_fragment_source =
   "uniform float vkern[9];"
   "uniform bool invert;"
   "void main () {"
-  "  vec2 offset[9] = vec2[9] ( vec2(-1.0,-1.0), vec2( 0.0,-1.0), vec2( 1.0,-1.0),"
-  "                             vec2(-1.0, 0.0), vec2( 0.0, 0.0), vec2( 1.0, 0.0),"
-  "                             vec2(-1.0, 1.0), vec2( 0.0, 1.0), vec2( 1.0, 1.0) );"
+  "  vec2 offset[9];"
+  "  offset[0] = vec2(-1.0,-1.0);"
+  "  offset[1] = vec2( 0.0,-1.0);"
+  "  offset[2] = vec2( 1.0,-1.0);"
+  "  offset[3] = vec2(-1.0, 0.0);"
+  "  offset[4] = vec2( 0.0, 0.0);"
+  "  offset[5] = vec2( 1.0, 0.0);"
+  "  offset[6] = vec2(-1.0, 1.0);"
+  "  offset[7] = vec2( 0.0, 1.0);"
+  "  offset[8] = vec2( 1.0, 1.0);"
   "  vec2 texturecoord = gl_TexCoord[0].st;"
   "  int i;"
   "  float luma;"
@@ -308,7 +315,7 @@ const gchar *hconv9_fragment_source =
   "uniform sampler2DRect tex;"
   "uniform float kernel[9];"
   "void main () {"
-  "  vec2 texturecoord[10];"
+  "  vec2 texturecoord[9];"
   "  float s = gl_TexCoord[0].s;"
   "  float t = gl_TexCoord[0].t;"
   "  texturecoord[0] = vec2(s-4.0, t);"