diff --git a/reset.py b/reset.py
index f86c7f8..682036b 100755
--- a/reset.py
+++ b/reset.py
@@ -9,6 +9,17 @@
 firmadyne_path = config["DEFAULT"].get("firmadyne_path", "")
 sudo_pass = config["DEFAULT"].get("sudo_password", "")
 
+print ("[+] Checking if filesystem is still mounted...")
+child = pexpect.spawn("/bin/sh" , ["-c", "sudo findmnt -l | grep " + os.path.join(firmadyne_path, "scratch/*/image")])
+child.sendline(sudo_pass)
+child.expect_exact(pexpect.EOF)
+if bytes(firmadyne_path.encode()) in child.before:
+    loop_dev = child.before.split(b' ')[1].decode()
+    print ("[+] Unmounting filesystem...")
+    child = pexpect.spawn("/bin/sh" , ["-c", "sudo umount " + loop_dev])
+    child.sendline(sudo_pass)
+    child.expect_exact(pexpect.EOF)
+
 print ("[+] Cleaning previous images and created files by firmadyne")
 child = pexpect.spawn("/bin/sh" , ["-c", "sudo rm -rf " + os.path.join(firmadyne_path, "images/*.tar.gz")])
 child.sendline(sudo_pass)