diff --git a/src/butil/iobuf_profiler.cpp b/src/butil/iobuf_profiler.cpp
index bcb5339130..15356955a6 100644
--- a/src/butil/iobuf_profiler.cpp
+++ b/src/butil/iobuf_profiler.cpp
@@ -47,7 +47,7 @@ static uint g_iobuf_profiler_sample_rate = 100;
 static void InitGlobalIOBufProfilerInfo() {
     const char* enabled = getenv("ENABLE_IOBUF_PROFILER");
     g_iobuf_profiler_enabled = enabled && strcmp("1", enabled) == 0 && ::GetStackTrace != NULL;
-    if (g_iobuf_profiler_enabled) {
+    if (!g_iobuf_profiler_enabled) {
         return;
     }