diff --git a/vendor/lua/lua.go b/vendor/lua/lua.go
index 5a4a31e..a039618 100644
--- a/vendor/lua/lua.go
+++ b/vendor/lua/lua.go
@@ -12,7 +12,7 @@ package lua
 #cgo CFLAGS: -Ilua
 #cgo llua LDFLAGS: -llua
 #cgo luaa LDFLAGS: -llua -lm -ldl
-#cgo linux,!llua,!luaa LDFLAGS: -llua5.1
+#cgo linux,!llua,!luaa LDFLAGS: -llua5.1 -lm
 #cgo darwin,!luaa pkg-config: lua5.1
 #cgo freebsd,!luaa LDFLAGS: -llua-5.1