1 files changed, 5 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index 1c266ce7..3d378050 100755
--- a/setup.py
+++ b/setup.py
@@ -75,6 +75,11 @@ setup(name="python-apt",
 
 if len(sys.argv) > 1 and sys.argv[1] == "build":
     import sphinx
+    try:
+        import pygtk
+    except ImportError:
+        print >> sys.stderr, 'E: python-gtk2 is required to build documentation.'
+        sys.exit(0)
     sphinx.main(["sphinx", "-b", "html", "-d", "build/doc/doctrees",
                 os.path.abspath("doc/source"), "build/doc/html"])
     sphinx.main(["sphinx", "-b", "text", "-d", "build/doc/doctrees",