diff --git a/lib/libthr/thread/thr_mutex.c b/lib/libthr/thread/thr_mutex.c
index a3f6c1d56b60..0f593f0b733c 100644
--- a/lib/libthr/thread/thr_mutex.c
+++ b/lib/libthr/thread/thr_mutex.c
@@ -69,7 +69,7 @@
  * For adaptive mutexes, how many times to spin doing trylock2
  * before entering the kernel to block
  */
-#define MUTEX_ADAPTIVE_SPINS	200
+#define MUTEX_ADAPTIVE_SPINS	2000
 
 /*
  * Prototypes