diff --git a/src/vm.c b/src/vm.c
index 1c47953d..141f6c80 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -1480,7 +1480,7 @@ super_invoke:;
     TARGET(OP_YIELD): {
         JSR_ASSERT(frame->gen, "Current function is not a Generator");
         JSR_ASSERT(frame->gen->state != GEN_STARTED && frame->gen->state != GEN_SUSPENDED,
-               "Invalid generator state");
+                   "Invalid generator state");
 
         Value ret = pop(vm);