diff --git a/libc/integral/c.inc b/libc/integral/c.inc
index ca078d5f5..9a253e41e 100644
--- a/libc/integral/c.inc
+++ b/libc/integral/c.inc
@@ -531,8 +531,8 @@ typedef struct {
 #pragma GCC diagnostic ignored "-Wold-style-definition" /* orwellian bullsh */
 #endif
 
-#if defined __GNUC__ && __GNUC__ >= 14
-#pragma GCC diagnostic warning "-Wimplicit-function-declaration"
+#if !defined(__cplusplus) && defined(__GNUC__) && __GNUC__ >= 14
+#pragma GCC diagnostic ignored "-Wimplicit-function-declaration"
 #endif
 
 #ifdef __x86_64__