diff --git a/dtc.changes b/dtc.changes
index 817aa9c..0ce2b73 100644
--- a/dtc.changes
+++ b/dtc.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat Dec 12 16:30:13 UTC 2015 - mpluskal@suse.com
+
+- Obsolete old devel package as well
+
 -------------------------------------------------------------------
 Sat Dec  5 10:22:44 UTC 2015 - mpluskal@suse.com
 
diff --git a/dtc.spec b/dtc.spec
index f503432..c8abe0b 100644
--- a/dtc.spec
+++ b/dtc.spec
@@ -53,8 +53,9 @@ architectures.
 Summary:        Development headers for device tree library
 Group:          Development/Libraries/C and C++
 Requires:       libfdt%{sover} = %{version}-%{release}
-# Provde previously used incorrectly named devel package
-Provides:       libfdt%1-devel = %{version}-%{release}
+# Provide previously used incorrectly named devel package
+Provides:       libfdt1-devel = %{version}-%{release}
+Obsoletes:      libfdt1-devel < %{version}-%{release}
 
 %description -n libfdt-devel
 This package provides development files for libfdt