diff --git a/inode.c b/inode.c
index ce7b585..4d9af5e 100644
--- a/inode.c
+++ b/inode.c
@@ -658,7 +658,8 @@ static int simplefs_unlink(struct inode *dir, struct dentry *dentry)
     mark_inode_dirty(inode);
 
     /* Free inode and index block from bitmap */
-    put_blocks(sbi, bno, 1);
+    if (S_ISLNK(inode->i_mode))
+        put_blocks(sbi, bno, 1);
     put_inode(sbi, ino);
 
     return ret;