diff --git a/libc/malloc_debug/Android.mk b/libc/malloc_debug/Android.mk
index f0f4056..4c2c7f3 100644
--- a/libc/malloc_debug/Android.mk
+++ b/libc/malloc_debug/Android.mk
@@ -37,10 +37,12 @@
 LOCAL_SANITIZE := never
 LOCAL_NATIVE_COVERAGE := false
 
+# -Wno-error=format-zero-length needed for gcc to compile.
 LOCAL_CFLAGS := \
     -Wall \
     -Werror \
     -fno-stack-protector \
+    -Wno-error=format-zero-length \
 
 include $(BUILD_SHARED_LIBRARY)