diff --git a/include/fmt/core.h b/include/fmt/core.h
index 5965ce28..db7649b2 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -254,7 +254,9 @@
 
 // Enable minimal optimizations for more compact code in debug mode.
 FMT_GCC_PRAGMA("GCC push_options")
+#ifndef __OPTIMIZE__
 FMT_GCC_PRAGMA("GCC optimize(\"Og\")")
+#endif
 
 FMT_BEGIN_NAMESPACE