diff --git a/contrib/buildsystems/engine.pl b/contrib/buildsystems/engine.pl
index 417ae71d44ccab..ee4fca200cc506 100755
--- a/contrib/buildsystems/engine.pl
+++ b/contrib/buildsystems/engine.pl
@@ -263,7 +263,7 @@ sub handleCompileLine
         if ("$part" eq "-o") {
             # ignore object file
             shift @parts;
-        } elsif ("$part" eq "-c" || "$part" eq "-i" || "$part" =~ /^-fno-/) {
+        } elsif ("$part" eq "-c" || "$part" eq "-i" || "$part" =~ /^-fno-/ || "$part" eq '-pedantic') {
             # ignore compile flag
         } elsif ($part =~ /^.?-I/) {
             push(@incpaths, $part);