diff --git a/lib/ansible/modules/packaging/os/apt_key.py b/lib/ansible/modules/packaging/os/apt_key.py
index 09679853f8f..ebcdc3aa4b9 100644
--- a/lib/ansible/modules/packaging/os/apt_key.py
+++ b/lib/ansible/modules/packaging/os/apt_key.py
@@ -132,7 +132,7 @@ def all_keys(module, keyring, short_format):
     results = []
     lines = out.split('\n')
     for line in lines:
-        if line.startswith("pub"):
+        if line.startswith("pub") or line.startswith("sub"):
             tokens = line.split()
             code = tokens[1]
             (len_type, real_code) = code.split("/")