diff --git a/include/spdlog/fmt/fmt.h b/include/spdlog/fmt/fmt.h
--- a/include/spdlog/fmt/fmt.h
+++ b/include/spdlog/fmt/fmt.h
-@@ -16,10 +16,7 @@
- #endif
+@@ -17,9 +17,7 @@
#ifndef FMT_USE_WINDOWS_H
#define FMT_USE_WINDOWS_H 0
--#endif
+ #endif
-#include "bundled/core.h"
-#include "bundled/format.h"
-#else // external fmtlib
+#endif // external fmtlib
++
#include <fmt/core.h>
#include <fmt/format.h>
- #endif
+-#endif
diff --git a/include/spdlog/fmt/ostr.h b/include/spdlog/fmt/ostr.h
--- a/include/spdlog/fmt/ostr.h
+++ b/include/spdlog/fmt/ostr.h