diff --git a/include/setjmp.h b/include/setjmp.h
index ab697d8..3202eb4 100644
--- a/include/setjmp.h
+++ b/include/setjmp.h
@@ -17,6 +17,9 @@ typedef struct __jmp_buf jmp_buf[1];
 */
 extern int setjmp(jmp_buf env);
 
+/* Standard requires setjmp to be a macro (7.13§1) */
+#define setjmp setjmp
+
 /*
 ** Store the calling environment in ENV, not saving the signal mask.
 ** Return 0.