diff --git a/linker/debugger.cpp b/linker/debugger.cpp
index 079682c..c316151 100644
--- a/linker/debugger.cpp
+++ b/linker/debugger.cpp
@@ -170,9 +170,9 @@
   if (info != NULL) {
     // For a rethrown signal, this si_code will be right and the one debuggerd shows will
     // always be SI_TKILL.
-    snprintf(code_desc, sizeof(code_desc), ", code %d", info->si_code);
+    __libc_format_buffer(code_desc, sizeof(code_desc), ", code %d", info->si_code);
     if (has_address) {
-      snprintf(addr_desc, sizeof(addr_desc), ", fault addr %p", info->si_addr);
+      __libc_format_buffer(addr_desc, sizeof(addr_desc), ", fault addr %p", info->si_addr);
     }
   }
   __libc_format_log(ANDROID_LOG_FATAL, "libc",