diff --git a/make/errorFilter.sh b/make/errorFilter.sh
index 30259c1..b041ac2 100755
--- a/make/errorFilter.sh
+++ b/make/errorFilter.sh
@@ -35,7 +35,7 @@ while (<FILE>) {
                 $file =~ s/\.s$/.c/;
             }
 
-            $_ = "$pwd/$file:$lineno:0: Error: $unresolvedRefError";
+            $_ = "$pwd/$file:$lineno:0: error: $unresolvedRefError";
         } else {
             $unresolvedRefError = undef;
         }
@@ -49,7 +49,7 @@ while (<FILE>) {
         my $lineno = $2;
         my $error = $3;
 
-        $_ = "$pwd/$file:$lineno:0:$error";
+        $_ = "$pwd/$file:$lineno:0: error: $error";
     }
     print STDERR "$_\n";
 }