diff --git a/tool/migration_to_v1.0/migration.sh b/tool/migration_to_v1.0/migration.sh
index e42d3806d..507cf2e6f 100755
--- a/tool/migration_to_v1.0/migration.sh
+++ b/tool/migration_to_v1.0/migration.sh
@@ -2,7 +2,7 @@
 set -e
 set -u
 
-USAGE="Usage: conversion_to_1.0.sh src-path dest-path"
+USAGE="Usage: migration.sh src-path dest-path"
 
 echo "BTstack conversion to v1.0 helper"
 echo "BlueKitchen GmbH, 2016"
@@ -15,6 +15,7 @@ if [ $# -ne 2 ]; then
 fi
 SRC=$1
 DEST=$2
+DIR=`dirname $0`
 
 echo "Creating copy of $SRC at $DEST"
 cp -r $SRC/ $DEST
@@ -22,11 +23,11 @@ cp -r $SRC/ $DEST
 echo "Updating function calls"
 
 # simple function rename
-find $DEST -type f -print0 | xargs -0 sed -i -f convert.sed
+find $DEST -type f -print0 | xargs -0 sed -i -f $DIR/migration.sed
 
 # complext function rename using coccinelle
 command -v spatch >/dev/null 2>&1 || { echo >&2 "spatch from cocinelle required but not installed. Aborting."; exit 1; }
-spatch --sp-file convert.cocci --in-place  --dir $DEST > /dev/null # 2>&1
+spatch --sp-file $DIR/migration.cocci --in-place  --dir $DEST > /dev/null # 2>&1
 echo "Done. Good luck!"