diff --git a/test_interest_aggregation/test_interest_aggregation.py b/test_interest_aggregation/test_interest_aggregation.py
index e93850b..8c85b1f 100644
--- a/test_interest_aggregation/test_interest_aggregation.py
+++ b/test_interest_aggregation/test_interest_aggregation.py
@@ -148,12 +148,12 @@
         #Fail if either is unanswered.
         peekOutputFile = os.path.abspath(self.logFolder + "test-peek-output-5.txt")
         self.startProcess("ndnpeek-5",
-            ["ndnpeek", "-l 6000", "ndn:/test-agg/C"],
+            ["ndnpeek", "--lifetime", "6000", "ndn:/test-agg/C"],
             "-> Starting Peek Client 5 (Prefix=ndn:/test-agg/C, InterestLifetime=6000ms)",
             outputFile=peekOutputFile)
         peekOutputFile = os.path.abspath(self.logFolder + "test-peek-output-6.txt")
         self.startProcess("ndnpeek-6",
-            ["ndnpeek", "-l 8000", "ndn:/test-agg/C"],
+            ["ndnpeek", "--lifetime", "8000", "ndn:/test-agg/C"],
             "-> Starting Peek Client 6 (Prefix=ndn:/test-agg/C, InterestLifetime=8000ms)",
             outputFile=peekOutputFile)
         self.waitForProcessCompletion("ndnpeek-5", 10)
diff --git a/test_linkfail/ping.sh b/test_linkfail/ping.sh
index 17a7af3..6d4779c 100755
--- a/test_linkfail/ping.sh
+++ b/test_linkfail/ping.sh
@@ -7,7 +7,7 @@
 
 ndnping -c 25 /B &> logs/${LOGPREFIX}_ping_A.log
 
-LOSS=$(sed -n 's/.*received, \([^,]*\) packet loss.*/\1/p' logs/${LOGPREFIX}_ping_A.log)
+LOSS=$(sed -n 's/.*nacked, \([^,]*\) packet loss.*/\1/p' logs/${LOGPREFIX}_ping_A.log)
 MAXRTT=$(sed -n 's/rtt.* = .*\/\([^)]*\).*\/.*/\1/p' logs/${LOGPREFIX}_ping_A.log)
 
 [[ $LOSS == '0%' ]] && [[ $(echo $MAXRTT | sed 's/\..*//') -le 100 ]]