diff --git a/src/glsl/glcpp/glcpp-parse.y b/src/glsl/glcpp/glcpp-parse.y
index 43513ebb66b..b31a18f87dc 100644
--- a/src/glsl/glcpp/glcpp-parse.y
+++ b/src/glsl/glcpp/glcpp-parse.y
@@ -1094,6 +1094,9 @@ glcpp_parser_create (const struct gl_extensions *extensions, int api)
 	   if (extensions->ARB_fragment_coord_conventions)
 	      add_builtin_define(parser, "GL_ARB_fragment_coord_conventions",
 				 1);
+
+	   if (extensions->ARB_explicit_attrib_location)
+	      add_builtin_define(parser, "GL_ARB_explicit_attrib_location", 1);
 	}
 
 	language_version = 110;