diff --git a/Source/Preprocessor/cpp.c b/Source/Preprocessor/cpp.c
index cae6ec835..1bdb013a2 100644
--- a/Source/Preprocessor/cpp.c
+++ b/Source/Preprocessor/cpp.c
@@ -214,7 +214,7 @@ DOHHash *Preprocessor_define(DOHString_or_char *str, int swigmacro)
   }
 
   if (!swigmacro) {
-    Replace(macrovalue,"\\\n"," ", DOH_REPLACE_ANY);
+    Replace(macrovalue,"\\\n"," ", DOH_REPLACE_NOQUOTE);
   }
   /* Get rid of whitespace surrounding # */
   Replace(macrovalue,"#","\001",DOH_REPLACE_NOQUOTE);