diff --git a/configure.ac b/configure.ac
index f9e6e55c2..247d055d8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1480,7 +1480,6 @@ else
 fi
 # disable some warnings, whether explicitly enabled above or by default
 # these are not compatible with our custom printf specifiers
-WARN_CFLAGS="$WARN_CFLAGS -Wno-format"
 WARN_CFLAGS="$WARN_CFLAGS -Wno-format-security"
 # we generally use comments, but GCC doesn't seem to recognize many of them
 WARN_CFLAGS="$WARN_CFLAGS -Wno-implicit-fallthrough"