diff --git a/bsd-user/mmap.c b/bsd-user/mmap.c
index 7f2018ede0..20cd29d145 100644
--- a/bsd-user/mmap.c
+++ b/bsd-user/mmap.c
@@ -25,7 +25,7 @@
 //#define DEBUG_MMAP
 
 static pthread_mutex_t mmap_mutex = PTHREAD_MUTEX_INITIALIZER;
-static int __thread mmap_lock_count;
+static __thread int mmap_lock_count;
 
 void mmap_lock(void)
 {