1 files changed, 4 insertions, 0 deletions
diff --git a/gsk/ngl/resources/custom.glsl b/gsk/ngl/resources/custom.glsl
index d2aed97fc8..6f91df6cf4 100644
--- a/gsk/ngl/resources/custom.glsl
+++ b/gsk/ngl/resources/custom.glsl
@@ -1,10 +1,14 @@
 // VERTEX_SHADER:
+// custom.glsl
+
 void main() {
   gl_Position = u_projection * u_modelview * vec4(aPosition, 0.0, 1.0);
   vUv = vec2(aUv.x, aUv.y);
 }
 
 // FRAGMENT_SHADER:
+// custom.glsl
+
 // The shader supplies:
 void mainImage(out vec4 fragColor, in vec2 fragCoord, in vec2 resolution, in vec2 uv);