diff --git a/hashmap.h b/hashmap.h
index ef220de..b011b39 100644
--- a/hashmap.h
+++ b/hashmap.h
@@ -449,7 +449,8 @@
  * containing a @member which is a "struct hashmap_entry"
  */
 #define hashmap_for_each_entry(map, iter, var, member) \
-	for (var = hashmap_iter_first_entry_offset(map, iter, \
+	for (var = NULL, /* for systems without typeof */ \
+	     var = hashmap_iter_first_entry_offset(map, iter, \
 						OFFSETOF_VAR(var, member)); \
 		var; \
 		var = hashmap_iter_next_entry_offset(iter, \