diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index cf7dc24..818d50d 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -13892,7 +13892,7 @@
 requires_protocol_version tls13
 requires_certificate_authentication
 run_test    "Handshake defragmentation on client: len=512, TLS 1.3" \
-            "$O_NEXT_SRV -tls1_3 -max_send_frag 512 " \
+            "$O_NEXT_SRV -tls1_3 -split_send_frag 512 " \
             "$P_CLI debug_level=4 " \
             0 \
             -c "reassembled record" \
@@ -13907,7 +13907,7 @@
 requires_certificate_authentication
 requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
 run_test    "Handshake defragmentation on client: len=512, TLS 1.2" \
-            "$O_NEXT_SRV -tls1_2 -max_send_frag 512 " \
+            "$O_NEXT_SRV -tls1_2 -split_send_frag 512 " \
             "$P_CLI debug_level=4 " \
             0 \
             -c "reassembled record" \
@@ -13918,7 +13918,7 @@
 requires_protocol_version tls13
 requires_certificate_authentication
 run_test    "Handshake defragmentation on client: len=513, TLS 1.3" \
-            "$O_NEXT_SRV -tls1_3 -max_send_frag 513 " \
+            "$O_NEXT_SRV -tls1_3 -split_send_frag 513 " \
             "$P_CLI debug_level=4 " \
             0 \
             -c "reassembled record" \
@@ -13930,7 +13930,7 @@
 requires_certificate_authentication
 requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
 run_test    "Handshake defragmentation on client: len=513, TLS 1.2" \
-            "$O_NEXT_SRV -tls1_2 -max_send_frag 513 " \
+            "$O_NEXT_SRV -tls1_2 -split_send_frag 513 " \
             "$P_CLI debug_level=4 " \
             0 \
             -c "reassembled record" \
@@ -14177,7 +14177,7 @@
 requires_certificate_authentication
 run_test    "Handshake defragmentation on server: len=512, TLS 1.3" \
             "$P_SRV debug_level=4 auth_mode=required" \
-            "$O_NEXT_CLI -tls1_3 -max_send_frag 512 -cert $DATA_FILES_PATH/server5.crt -key $DATA_FILES_PATH/server5.key" \
+            "$O_NEXT_CLI -tls1_3 -split_send_frag 512 -cert $DATA_FILES_PATH/server5.crt -key $DATA_FILES_PATH/server5.key" \
             0 \
             -s "reassembled record" \
             -s "handshake fragment: 0 \\.\\. 512 of [0-9]\\+ msglen 512" \
@@ -14188,7 +14188,7 @@
 requires_certificate_authentication
 run_test    "Handshake defragmentation on server: len=512, TLS 1.2" \
             "$P_SRV debug_level=4 auth_mode=required" \
-            "$O_NEXT_CLI -tls1_2 -max_send_frag 512 -cert $DATA_FILES_PATH/server5.crt -key $DATA_FILES_PATH/server5.key" \
+            "$O_NEXT_CLI -tls1_2 -split_send_frag 512 -cert $DATA_FILES_PATH/server5.crt -key $DATA_FILES_PATH/server5.key" \
             0 \
             -s "reassembled record" \
             -s "handshake fragment: 0 \\.\\. 512 of [0-9]\\+ msglen 512" \
@@ -14199,7 +14199,7 @@
 requires_certificate_authentication
 run_test    "Handshake defragmentation on server: len=513, TLS 1.3" \
             "$P_SRV debug_level=4 auth_mode=required" \
-            "$O_NEXT_CLI -tls1_3 -max_send_frag 513 -cert $DATA_FILES_PATH/server5.crt -key $DATA_FILES_PATH/server5.key" \
+            "$O_NEXT_CLI -tls1_3 -split_send_frag 513 -cert $DATA_FILES_PATH/server5.crt -key $DATA_FILES_PATH/server5.key" \
             0 \
             -s "reassembled record" \
             -s "handshake fragment: 0 \\.\\. 513 of [0-9]\\+ msglen 513" \
@@ -14210,7 +14210,7 @@
 requires_certificate_authentication
 run_test    "Handshake defragmentation on server: len=513, TLS 1.2" \
             "$P_SRV debug_level=4 auth_mode=required" \
-            "$O_NEXT_CLI -tls1_2 -max_send_frag 513 -cert $DATA_FILES_PATH/server5.crt -key $DATA_FILES_PATH/server5.key" \
+            "$O_NEXT_CLI -tls1_2 -split_send_frag 513 -cert $DATA_FILES_PATH/server5.crt -key $DATA_FILES_PATH/server5.key" \
             0 \
             -s "reassembled record" \
             -s "handshake fragment: 0 \\.\\. 513 of [0-9]\\+ msglen 513" \