diff --git a/libc/arch-arm64/bionic/libgcc_compat.c b/libc/arch-arm64/bionic/libgcc_compat.c
index 2dae3f552..904cc16af 100644
--- a/libc/arch-arm64/bionic/libgcc_compat.c
+++ b/libc/arch-arm64/bionic/libgcc_compat.c
@@ -1,6 +1,6 @@
 /* STOPSHIP: remove this once the flounder blobs have been rebuilt (http://b/20065774). */
 
-#if !defined(__clang__)
+#if defined(__clang__)
 
 extern void __clear_cache(char*, char*);
 extern char _Unwind_Backtrace;