diff --git a/include/proto/backend.h b/include/proto/backend.h
index 54ae057..e98df2b 100644
--- a/include/proto/backend.h
+++ b/include/proto/backend.h
@@ -58,7 +58,7 @@
 }
 
 /* set the time of last session on the backend */
-static void inline be_set_sess_last(struct proxy *be)
+static inline void be_set_sess_last(struct proxy *be)
 {
 	be->be_counters.last_sess = now.tv_sec;
 }