diff --git a/mjit_compile.c b/mjit_compile.c
index 21658c4adc..b2ece0eb77 100644
--- a/mjit_compile.c
+++ b/mjit_compile.c
@@ -168,7 +168,7 @@ compile_insns(FILE *f, const struct rb_iseq_constant_body *body, unsigned int st
         pos = compile_insn(f, body, insn, body->iseq_encoded + (pos+1), pos, status, &branch);
         if (status->success && branch.stack_size > body->stack_max) {
             if (mjit_opts.warnings || mjit_opts.verbose)
-		fprintf(stderr, "MJIT warning: JIT stack size (%d) exceeded its max size (%d)\n", branch.stack_size, body->stack_max);
+                fprintf(stderr, "MJIT warning: JIT stack size (%d) exceeded its max size (%d)\n", branch.stack_size, body->stack_max);
             status->success = FALSE;
         }
         if (!status->success)