diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index b9601980d6..5434ecfb72 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -5745,24 +5745,24 @@ run_test    "DTLS proxy: delay ChangeCipherSpec" \
 
 run_test    "DTLS reordering: Buffer out-of-order handshake message" \
             -p "$P_PXY delay=2 seed=1" \
-            "$P_SRV cookies=0 dtls=1 debug_level=2" \
-            "$P_CLI dtls=1 debug_level=2" \
+            "$P_SRV dgram_packing=0 cookies=0 dtls=1 debug_level=2" \
+            "$P_CLI dgram_packing=0 dtls=1 debug_level=2" \
             0 \
             -c "Buffering HS message" \
             -c "Next handshake message has been buffered - load"
 
 run_test    "DTLS reordering: Buffer record from future epoch" \
             -p "$P_PXY drop=3 seed=2" \
-            "$P_SRV cookies=0 dtls=1 debug_level=2" \
-            "$P_CLI dtls=1 debug_level=2" \
+            "$P_SRV dgram_packing=0 cookies=0 dtls=1 debug_level=2" \
+            "$P_CLI dgram_packing=0 dtls=1 debug_level=2" \
             0 \
             -s "Buffer record from epoch 1" \
             -s "Found buffered record from current epoch - load"
 
 run_test    "DTLS reordering: Buffer out-of-order CCS message"\
             -p "$P_PXY delay=3 seed=1" \
-            "$P_SRV cookies=0 dtls=1 debug_level=2" \
-            "$P_CLI dtls=1 debug_level=2" \
+            "$P_SRV dgram_packing=0 cookies=0 dtls=1 debug_level=2" \
+            "$P_CLI dgram_packing=0 dtls=1 debug_level=2" \
             0 \
             -c "Inject buffered CCS message" \
             -c "Remember CCS message"