diff --git a/headers/posix/net/if.h b/headers/posix/net/if.h
index a7edb673e9..8186a62952 100644
--- a/headers/posix/net/if.h
+++ b/headers/posix/net/if.h
@@ -114,7 +114,7 @@ extern "C" {
 #endif
 
 unsigned if_nametoindex(const char* name);
-char* if_indextoname(unsigned index, char* nameBuffer);
+char* if_indextoname(unsigned, char* nameBuffer);
 struct if_nameindex* if_nameindex(void);
 void if_freenameindex(struct if_nameindex* interfaceArray);
 
diff --git a/headers/posix/sys/statvfs.h b/headers/posix/sys/statvfs.h
index 542add1bdd..e36b4f2fa0 100644
--- a/headers/posix/sys/statvfs.h
+++ b/headers/posix/sys/statvfs.h
@@ -31,8 +31,8 @@ struct statvfs {
 extern "C" {
 #endif
 
-int statvfs(const char *path, struct statvfs *statvfs);
-int fstatvfs(int fd, struct statvfs *statvfs);
+int statvfs(const char *, struct statvfs *);
+int fstatvfs(int, struct statvfs *);
 
 #ifdef __cplusplus
 }