diff --git a/include/fmt/format.h b/include/fmt/format.h
index 2c2b07f8..8166e858 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -66,10 +66,6 @@
 // many valid cases.
 # pragma GCC diagnostic ignored "-Wshadow"
 
-// Disable the warning about implicit conversions that may change the sign of
-// an integer; silencing it otherwise would require many explicit casts.
-# pragma GCC diagnostic ignored "-Wsign-conversion"
-
 // Disable the warning about nonliteral format strings because we construct
 // them dynamically when falling back to snprintf for FP formatting.
 # pragma GCC diagnostic ignored "-Wformat-nonliteral"