diff --git a/shaders/src/surface_material_inputs.fs b/shaders/src/surface_material_inputs.fs
index fa597a8f2f..d58383de62 100644
--- a/shaders/src/surface_material_inputs.fs
+++ b/shaders/src/surface_material_inputs.fs
@@ -106,7 +106,7 @@ struct MaterialInputs {
 #endif
 
 #if defined(FRAG_OUTPUT0)
-    FRAG_OUTPUT_MATERIAL_TYPE0 FRAG_OUTPUT0;
+    FRAG_OUTPUT_PRECISION0 FRAG_OUTPUT_MATERIAL_TYPE0 FRAG_OUTPUT0;
 #endif
 
 };