diff --git a/tests/integration/hook-shift_ts.sh b/tests/integration/hook-shift_ts.sh
index 76090176f..082778013 100755
--- a/tests/integration/hook-shift_ts.sh
+++ b/tests/integration/hook-shift_ts.sh
@@ -26,11 +26,11 @@ STATS_FILE=$(mktemp)
 
 NUM_SAMPLES=${NUM_SAMPLES:-10}
 
-OFFSET=-10
+OFFSET=-10.0
 EPSILON=0.05
 
 villas-signal random -l ${NUM_SAMPLES} -r 50 | \
-villas-hook shift_ts offset=${OFFSET}        | \
+villas-hook shift_ts -o offset=${OFFSET}     | \
 villas-hook stats -o format=json -o output="${STATS_FILE}" > /dev/null
 
 jq .owd ${STATS_FILE}