diff --git a/Headers/Additions/GNUstepBase/GSIMap.h b/Headers/Additions/GNUstepBase/GSIMap.h
index 65cfb491c..096b3824a 100644
--- a/Headers/Additions/GNUstepBase/GSIMap.h
+++ b/Headers/Additions/GNUstepBase/GSIMap.h
@@ -978,7 +978,7 @@ GSIMapCountByEnumeratingWithStateObjectsCount(GSIMapTable map,
            * will only work with things that are id-sized, however, so don't
            * try using it with non-object collections.
            */
-          stackbuf[i] = *(id*)&node->key.bool;
+          stackbuf[i] = *(id*)&node->key.bl;
         }
     }
   /* Store the important bits of the enumerator in the caller. */
diff --git a/Headers/Additions/GNUstepBase/GSUnion.h b/Headers/Additions/GNUstepBase/GSUnion.h
index a45fed094..a42fbf165 100644
--- a/Headers/Additions/GNUstepBase/GSUnion.h
+++ b/Headers/Additions/GNUstepBase/GSUnion.h
@@ -121,7 +121,7 @@ typedef	union {
 #if	defined(GSUNION_EXTRA)
   GSUNION_EXTRA	ext;
 #endif
-  BOOL		bool;	/* Guaranteed present */
+  BOOL		bl;	/* Guaranteed present */
 } GSUNION;
 
 #endif