diff --git a/python/servo/command_base.py b/python/servo/command_base.py
index b84a811c76b..5e89af3fd47 100644
--- a/python/servo/command_base.py
+++ b/python/servo/command_base.py
@@ -537,7 +537,7 @@ class CommandBase(object):
         try:
             if check_gstreamer_lib():
                 return False
-        except subprocess.SubprocessError:
+        except (FileNotFoundError, WindowsError):
             # Some systems don't have pkg-config; we can't probe in this case
             # and must hope for the best
             return False