diff --git a/build.sh b/build.sh
index 87325b9fdd..f8ba714aa9 100644
--- a/build.sh
+++ b/build.sh
@@ -2,7 +2,7 @@
 
 echo Commit hash: ${ghprbActualCommit}
 echo Changes in this commit:
-export COMMIT_CHANGES=`git diff ${ghprbActualCommit}^1 ${ghprbActualCommit}`
+export COMMIT_CHANGES=`git diff-tree --name-only `git rev-parse HEAD`..${ghprbActualCommit}`
 echo ${COMMIT_CHANGES}
 
 wget https://raw.githubusercontent.com/KSP-CKAN/CKAN/master/bin/ckan-validate.py -O ckan-validate.py