diff --git a/tests/gem_fenced_exec_thrash.c b/tests/gem_fenced_exec_thrash.c
index 8281449e..b17eba20 100644
--- a/tests/gem_fenced_exec_thrash.c
+++ b/tests/gem_fenced_exec_thrash.c
@@ -45,7 +45,7 @@
 
 #define BATCH_SIZE 4096
 
-#define MAX_FENCES 16
+#define MAX_FENCES 32
 
 #define MI_BATCH_BUFFER_END	(0xA<<23)