diff --git a/libc/bionic/__vsprintf_chk.cpp b/libc/bionic/__vsprintf_chk.cpp
index 12b0ca6..560f12e 100644
--- a/libc/bionic/__vsprintf_chk.cpp
+++ b/libc/bionic/__vsprintf_chk.cpp
@@ -52,7 +52,7 @@
     int ret = vsnprintf(dest, dest_len_from_compiler, format, va);
 
     if ((size_t) ret >= dest_len_from_compiler) {
-        __fortify_chk_fail("vsprintf buffer overflow", 0);
+        __fortify_chk_fail("vsprintf buffer overflow prevented", 0);
     }
 
     return ret;