diff --git a/tools/include/linux/string.h b/tools/include/linux/string.h
index b466d0228b57..b96879477311 100644
--- a/tools/include/linux/string.h
+++ b/tools/include/linux/string.h
@@ -8,7 +8,7 @@ void *memdup(const void *src, size_t len);
 
 int strtobool(const char *s, bool *res);
 
-#ifndef __UCLIBC__
+#ifdef __GLIBC__
 extern size_t strlcpy(char *dest, const char *src, size_t size);
 #endif