diff --git a/src/node_credentials.cc b/src/node_credentials.cc
index c1f7a4f2acbdf6..8a832b0e3efb3a 100644
--- a/src/node_credentials.cc
+++ b/src/node_credentials.cc
@@ -116,7 +116,7 @@ bool SafeGetenv(const char* key,
       ret = uv_os_getenv(key, *val, &init_sz);
     }
 
-    if (ret >= 0) {  // Env key value fetch success.
+    if (ret == 0) {  // Env key value fetch success.
       *text = *val;
       return true;
     }