diff --git a/src/server.c b/src/server.c
index bc85a3778e..dd05154121 100644
--- a/src/server.c
+++ b/src/server.c
@@ -6171,6 +6171,8 @@ void createPidFile(void) {
     if (fp) {
         fprintf(fp,"%d\n",(int)getpid());
         fclose(fp);
+    } else {
+        serverLog(LL_WARNING, "Failed to write PID file: %s", strerror(errno));
     }
 }