diff --git a/ide/buildmanager.pas b/ide/buildmanager.pas
index 5ece43b18e..d2a443fb7e 100644
--- a/ide/buildmanager.pas
+++ b/ide/buildmanager.pas
@@ -975,7 +975,7 @@ begin
       AppendPathDelim(EnvironmentOptions.GetParsedLazarusDirectory)+
         GetForcedPathDelims('components/codetools/fpc.errore.msg');
     CodeToolBoss.CompilerDefinesCache.ExtraOptions:=
-                          '-Fr'+CodeToolBoss.DefinePool.EnglishErrorMsgFilename;
+               AnsiQuotedStr('-Fr'+CodeToolBoss.DefinePool.EnglishErrorMsgFilename,'"');
   end;
 end;