diff --git a/tests/integration/hook-shift_ts.sh b/tests/integration/hook-shift_ts.sh
index a5d1e8c97..03aacf002 100755
--- a/tests/integration/hook-shift_ts.sh
+++ b/tests/integration/hook-shift_ts.sh
@@ -29,7 +29,7 @@ NUM_SAMPLES=${NUM_SAMPLES:-10}
 OFFSET=-10
 EPSILON=0.05
 
-villas-signal sine -l ${NUM_SAMPLES} -r 10 | villas-hook shift_ts offset=${OFFSET} | villas-hook stats format=\"json\" output=\"${STATS_FILE}\" > /dev/null
+villas-signal random -l ${NUM_SAMPLES} -r 10 | villas-hook shift_ts offset=${OFFSET} | villas-hook stats format=\"json\" output=\"${STATS_FILE}\" > /dev/null
 
 jq .owd ${STATS_FILE}
 
diff --git a/tests/integration/pipe-file-advio.sh b/tests/integration/pipe-file-advio.sh
index 409d28e6f..68df24daa 100755
--- a/tests/integration/pipe-file-advio.sh
+++ b/tests/integration/pipe-file-advio.sh
@@ -52,7 +52,7 @@ nodes = {
 }
 EOF
 
-villas-signal sine -n -l ${NUM_SAMPLES} > ${INPUT_FILE}
+villas-signal random -n -l ${NUM_SAMPLES} > ${INPUT_FILE}
 
 villas-pipe -s ${CONFIG_FILE} remote_file_out < ${INPUT_FILE}