diff --git a/module/lua/ldo.c b/module/lua/ldo.c
index aca02b234..59d0b6a2c 100644
--- a/module/lua/ldo.c
+++ b/module/lua/ldo.c
@@ -61,7 +61,7 @@
 #elif defined(__mips__)
 #define JMP_BUF_CNT	12
 #elif defined(__s390x__)
-#define JMP_BUF_CNT	9
+#define JMP_BUF_CNT	18
 #else
 #define	JMP_BUF_CNT	1
 #endif