diff --git a/src/compiler/glsl/glcpp/glcpp-parse.y b/src/compiler/glsl/glcpp/glcpp-parse.y
index 93445e6dc96..7456c8ab872 100644
--- a/src/compiler/glsl/glcpp/glcpp-parse.y
+++ b/src/compiler/glsl/glcpp/glcpp-parse.y
@@ -785,6 +785,8 @@ junk:
          glcpp_warning(&@1, parser, "extra tokens at end of directive");
       else
          glcpp_error(&@1, parser, "extra tokens at end of directive");
+
+      (void)yynerrs;
    }
 ;
 
diff --git a/src/compiler/glsl/glsl_parser.yy b/src/compiler/glsl/glsl_parser.yy
index 428ff53cd31..574895b005a 100644
--- a/src/compiler/glsl/glsl_parser.yy
+++ b/src/compiler/glsl/glsl_parser.yy
@@ -3105,5 +3105,7 @@ layout_defaults:
       if (!state->out_qualifier->push_to_global(& @1, state)) {
          YYERROR;
       }
+
+      (void)yynerrs;
    }
    ;