diff --git a/nemo-extensions.spec b/nemo-extensions.spec
index ae146ba..6ae5f22 100644
--- a/nemo-extensions.spec
+++ b/nemo-extensions.spec
@@ -120,6 +120,7 @@ BuildArch:   noarch
 Requires:    nemo-python
 Requires:    meld
 Requires:    pyxdg
+Requires:    pygtk2
 
 %description -n nemo-compare
 Context menu comparison extension for Nemo file manager.