diff --git a/test/sharness/t0060-daemon.sh b/test/sharness/t0060-daemon.sh
index 431ff245ca3..2a25f5852ab 100755
--- a/test/sharness/t0060-daemon.sh
+++ b/test/sharness/t0060-daemon.sh
@@ -131,21 +131,21 @@ test_expect_success "ipfs help output looks good" '
 # check transport is encrypted by default and no plaintext is allowed
 
 test_expect_success SOCAT "default transport should support encryption (TLS, needs socat )" '
-  socat - tcp:localhost:$SWARM_PORT,connect-timeout=1 > swarmnc < ../t0060-data/mss-tls &&
+  socat -s - tcp:localhost:$SWARM_PORT,connect-timeout=1 > swarmnc < ../t0060-data/mss-tls &&
   grep -q "/tls" swarmnc &&
   test_must_fail grep -q "na" swarmnc ||
   test_fsh cat swarmnc
 '
 
 test_expect_success SOCAT "default transport should support encryption (Noise, needs socat )" '
-  socat - tcp:localhost:$SWARM_PORT,connect-timeout=1 > swarmnc < ../t0060-data/mss-noise &&
+  socat -s - tcp:localhost:$SWARM_PORT,connect-timeout=1 > swarmnc < ../t0060-data/mss-noise &&
   grep -q "/noise" swarmnc &&
   test_must_fail grep -q "na" swarmnc ||
   test_fsh cat swarmnc
 '
 
 test_expect_success SOCAT "default transport should not support plaintext (needs socat )" '
-  socat - tcp:localhost:$SWARM_PORT,connect-timeout=1 > swarmnc < ../t0060-data/mss-plaintext &&
+  socat -s - tcp:localhost:$SWARM_PORT,connect-timeout=1 > swarmnc < ../t0060-data/mss-plaintext &&
   grep -q "na" swarmnc &&
   test_must_fail grep -q "/plaintext" swarmnc ||
   test_fsh cat swarmnc
diff --git a/test/sharness/t0061-daemon-opts.sh b/test/sharness/t0061-daemon-opts.sh
index 531d2d247a5..a168ae4b068 100755
--- a/test/sharness/t0061-daemon-opts.sh
+++ b/test/sharness/t0061-daemon-opts.sh
@@ -18,7 +18,7 @@ apiaddr=$API_ADDR
 
 # Odd. this fails here, but the inverse works on t0060-daemon.
 test_expect_success SOCAT 'transport should be unencrypted ( needs socat )' '
-  socat - tcp:localhost:$SWARM_PORT,connect-timeout=1 > swarmnc < ../t0060-data/mss-plaintext &&
+  socat -s - tcp:localhost:$SWARM_PORT,connect-timeout=1 > swarmnc < ../t0060-data/mss-plaintext &&
   grep -q "/plaintext" swarmnc &&
   test_must_fail grep -q "na" swarmnc ||
   test_fsh cat swarmnc