diff --git a/library/constant_time_impl.h b/library/constant_time_impl.h
index 793ded4b9..273d2153b 100644
--- a/library/constant_time_impl.h
+++ b/library/constant_time_impl.h
@@ -546,7 +546,7 @@ static inline mbedtls_ct_condition_t mbedtls_ct_bool_not(mbedtls_ct_condition_t
     return (mbedtls_ct_condition_t) (~x);
 }
 
-#ifdef __GNUC__
+#if __GNUC__ > 4
 /* Restore warnings for -Wredundant-decls on gcc */
     #pragma GCC diagnostic pop
 #endif