diff --git a/include/spdlog/cfg/argv.h b/include/spdlog/cfg/argv.h
index a842e107..193cfa35 100644
--- a/include/spdlog/cfg/argv.h
+++ b/include/spdlog/cfg/argv.h
@@ -3,7 +3,6 @@
 
 #pragma once
 #include <spdlog/cfg/helpers.h>
-#include <spdlog/details/os.h>
 
 //
 // Init log levels using each argv entry that starts with "SPDLOG_LEVEL="