diff --git a/dtc.spec b/dtc.spec
index d38045e..906cf6b 100644
--- a/dtc.spec
+++ b/dtc.spec
@@ -65,6 +65,7 @@ sed -i 's/python2/python3/' pylibfdt/setup.py
 %ifarch %{e2k}
 # -MG is an unrecognized option for lcc
 sed -i 's,-MG,,' Makefile
+echo '#define DTC_VERSION "DTC %{version}"' > version_gen.h
 %endif
 
 %build