diff --git a/libwnck3.spec b/libwnck3.spec
index b75f4fa..494c646 100644
--- a/libwnck3.spec
+++ b/libwnck3.spec
@@ -30,7 +30,7 @@ about open windows, workspaces, their names/icons, and so forth.
 %package devel
 Summary: Libraries and headers for libwnck
 Group: Development/Libraries
-Requires: %{name} = %{version}-%{release}
+Requires: %{name}%{?_isa} = %{version}-%{release}
 
 %description devel
 The %{name}-devel package contains libraries and header files for
@@ -72,6 +72,7 @@ find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 %changelog
 * Wed Sep 03 2014 Kalev Lember <kalevlember@gmail.com> - 3.4.9-1
 - Update to 3.4.9
+- Tighten -devel subpackage deps
 
 * Sun Aug 17 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 3.4.7-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild