diff --git a/scripts/shaderc.lua b/scripts/shaderc.lua
index 02f7ae67b..81334cf2e 100644
--- a/scripts/shaderc.lua
+++ b/scripts/shaderc.lua
@@ -334,6 +334,7 @@ project "fcpp"
 		"NWORK=65536",
 		"NBUFF=65536",
 		"OLD_PREPROCESSOR=0",
+		"MSG_PREFIX=\"Preprocessor: \"",
 	}
 
 	files {