diff --git a/lib/ansible/module_utils/known_hosts.py b/lib/ansible/module_utils/known_hosts.py
index 14e0deb8fe4..dfd684c2328 100644
--- a/lib/ansible/module_utils/known_hosts.py
+++ b/lib/ansible/module_utils/known_hosts.py
@@ -27,6 +27,7 @@
 # USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import hmac
+from hashlib import sha1
 HASHED_KEY_MAGIC = "|1|"
 
 def add_git_host_key(module, url, accept_hostkey=True):