diff --git a/libs/c/include/stdio.h b/libs/c/include/stdio.h
index 3eb4cf94..3b49b3aa 100644
--- a/libs/c/include/stdio.h
+++ b/libs/c/include/stdio.h
@@ -1,6 +1,6 @@
 #ifndef _C_STDIO_H
 #define _C_STDIO_H
 
-extern int sprintf(char *__restrict s, const char *__restrict format, ...);
+int sprintf(char *__restrict s, const char *__restrict format, ...);
 
 #endif