diff --git a/avocado/linux/software_manager.py b/avocado/linux/software_manager.py
index 2e953ba24dcf636ef8f8cc2c3fb0f36f8f13656a..40af41d5c426935104a7cf7a74e5e6b06bdfcbde 100644
--- a/avocado/linux/software_manager.py
+++ b/avocado/linux/software_manager.py
@@ -737,7 +737,7 @@ class AptBackend(DpkgBackend):
         """
         try:
             command = process.find_command('apt-file')
-        except ValueError:
+        except process.CmdNotFoundError:
             self.install('apt-file')
             command = process.find_command('apt-file')