diff --git a/gtkmm30.spec b/gtkmm30.spec
index 5dadf40..600bee1 100644
--- a/gtkmm30.spec
+++ b/gtkmm30.spec
@@ -33,7 +33,7 @@ widgets that are easily extensible via inheritance.
 %package        devel
 Summary:        Development files for %{name}
 Group:          Development/Libraries
-Requires:       %{name} = %{version}-%{release}
+Requires:       %{name}%{?_isa} = %{version}-%{release}
 
 %description devel
 The %{name}-devel package contains libraries and header files for
@@ -108,6 +108,7 @@ make check %{?_smp_mflags}
 * Sat Apr 05 2014 Kalev Lember <kalevlember@gmail.com> - 3.11.10-1
 - Update to 3.11.10
 - Specify minimum required glibmm24 and gtk3 versions
+- Tighten -devel deps
 
 * Tue Mar 18 2014 Richard Hughes <rhughes@redhat.com> - 3.11.9-1
 - Update to 3.11.9