diff --git a/unicode-ucd.spec b/unicode-ucd.spec
index 64b89ef..d0d9fb7 100644
--- a/unicode-ucd.spec
+++ b/unicode-ucd.spec
@@ -24,6 +24,8 @@ containing test data for conformance to several important Unicode algorithms.
 %prep
 %setup -q -c
 
+grep -q "%{version}" ReadMe.txt || (echo "zip file seems not %{version}" ; exit 1)
+
 # license terms for doc
 cp -p %{SOURCE1} .
 
@@ -44,6 +46,9 @@ cp -ar . %{buildroot}%{ucddir}
 
 
 %changelog
+* Tue Oct  1 2013 Jens Petersen <petersen@redhat.com>
+- add a version check to prevent packaging a version mismatch
+
 * Mon Sep 30 2013 Jens Petersen <petersen@redhat.com> - 6.3.0-1
 - update to 6.3