diff --git a/range.h b/range.h
index 7b1f010..20349f2 100644
--- a/range.h
+++ b/range.h
@@ -1,6 +1,10 @@
 #ifndef _RANGE_H
 #define _RANGE_H
 
+#ifndef typeof
+#define typeof __typeof__
+#endif
+
 #ifndef MIN
 #define MIN(a, b)                                                              \
 	({                                                                     \