diff --git a/dev/dev.inc.sh b/dev/dev.inc.sh
index fa0fd75..7a52c72 100644
--- a/dev/dev.inc.sh
+++ b/dev/dev.inc.sh
@@ -5,7 +5,7 @@
 #
 # Description: common stuff for all dev scripts
 #
-#### $$VERSION$$ v1.30-0-g3266427
+#### $$VERSION$$ v1.31-dev-2-g427f670
 #############################################################
 
 # magic to ensure that we're always inside the root of our application,
@@ -20,3 +20,5 @@ else
 	printf "Sorry, no git repository %s\n" "$(pwd)" && exit 1
 fi
 
+HOOKDIR="dev/hooks"
+LASTCOMMIT=".git/.lastcommit"
diff --git a/dev/git-add.sh b/dev/git-add.sh
index 39c94eb..1e38538 100755
--- a/dev/git-add.sh
+++ b/dev/git-add.sh
@@ -3,15 +3,21 @@
 #
 # works together with git pre-push.sh and ADD all changed files since last push
 
-#### $$VERSION$$ v1.30-0-g3266427
+#### $$VERSION$$ v1.31-dev-2-g427f670
 
 #shellcheck disable=SC1090
 source "${0%/*}/dev.inc.sh"
 
-[ ! -f .git/.lastcommit ] && printf "No previous commit or hooks not installed, use \"git add\" instead ... Abort\n" && exit
+# check for last commit date
+if [ ! -f "${LASTCOMMIT}" ]; then
+	if ! touch -d "$(git log -1 --format=%cD)" "${LASTCOMMIT}"; then
+		printf "No previous commit found, use \"git add\" instead ... Abort\n"
+		exit
+	fi
+fi
 
 set +f
-FILES="$(find ./*  -newer .git/.lastcommit| grep -v -e 'DIST\/' -e 'STANDALONE\/' -e 'JSON.sh')"
+FILES="$(find ./*  -newer "${LASTCOMMIT}" | grep -v -e 'DIST\/' -e 'STANDALONE\/' -e 'JSON.sh')"
 set -f
 # FILES="$(find ./* -newer .git/.lastpush)"
 [ "${FILES}" = "" ] && printf "Nothing changed since last commit ...\n" && exit
diff --git a/dev/install-hooks.sh b/dev/install-hooks.sh
index e4e41b4..298c0cd 100755
--- a/dev/install-hooks.sh
+++ b/dev/install-hooks.sh
@@ -1,13 +1,11 @@
 #!/usr/bin/env bash
 # this has to run once atfer git clone
 # and every time we create new hooks
-#### $$VERSION$$ v1.30-0-g3266427
+#### $$VERSION$$ v1.31-dev-2-g427f670
 
 #shellcheck disable=SC1090
 source "${0%/*}/dev.inc.sh"
 
-HOOKDIR="dev/hooks"
-
 printf "Installing hooks..."
 for hook in pre-commit post-commit pre-push
 do