4 files changed, 4 insertions, 4 deletions
diff --git a/Biz/Ide/hooks/post-checkout b/Biz/Ide/hooks/post-checkout
index 95b35cd..9328c35 100755
--- a/Biz/Ide/hooks/post-checkout
+++ b/Biz/Ide/hooks/post-checkout
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -e
-init_tags=$BIZ_ROOT/Biz/Ide/init_tags.sh
+init_tags=${BIZ_ROOT:?}/Biz/Ide/init_tags.sh
 old=$1
 new=$2
 # filter out only the changed haskell files
diff --git a/Biz/Ide/hooks/post-merge b/Biz/Ide/hooks/post-merge
index 624e797..8aa530e 100755
--- a/Biz/Ide/hooks/post-merge
+++ b/Biz/Ide/hooks/post-merge
@@ -1,2 +1,2 @@
 #!/usr/bin/env bash
-exec $BIZ_ROOT/Biz/Ide/post-checkout 'HEAD@{1}' HEAD
+exec ${BIZ_ROOT:?}/Biz/Ide/post-checkout 'HEAD@{1}' HEAD
diff --git a/Biz/Ide/hooks/pre-commit b/Biz/Ide/hooks/pre-commit
index fe4bbe3..065a0f6 100755
--- a/Biz/Ide/hooks/pre-commit
+++ b/Biz/Ide/hooks/pre-commit
@@ -7,7 +7,7 @@
   changed=($(git diff-index --cached --name-only HEAD))
   for ns in ${changed[@]}
   do
-    version=$($BIZ_ROOT/Biz/Ide/version $ns)
+    version=$(${BIZ_ROOT:?}/Biz/Ide/version $ns)
     if (( $version == -1 )); then
       echo "info:  version:  $ns:  deleted"
     elif (( $version < 1 )); then
diff --git a/Biz/Ide/hooks/pre-push b/Biz/Ide/hooks/pre-push
index 5236651..c27046d 100755
--- a/Biz/Ide/hooks/pre-push
+++ b/Biz/Ide/hooks/pre-push
@@ -1,2 +1,2 @@
 #!/usr/bin/env bash
-lint "$BIZ_ROOT"/**/* && bild --test "$BIZ_ROOT"/**/*
+lint "${BIZ_ROOT:?}"/**/* && bild --test "${BIZ_ROOT:?}"/**/*