diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 8e978ac727..b456c300f3 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -1855,7 +1855,7 @@ component_test_full_cmake_clang () {
     tests/ssl-opt.sh -f 'Default\|ECJPAKE\|SSL async private'
 
     msg "test: compat.sh NULL (full config)" # ~ 2 min
-    env OPENSSL="$OPENSSL_LEGACY" GNUTLS_CLI="$GNUTLS_LEGACY_CLI" GNUTLS_SERV="$GNUTLS_LEGACY_SERV" tests/compat.sh -e '^$' -f 'NULL'
+    tests/compat.sh -e '^$' -f 'NULL'
 
     msg "test: compat.sh ARIA + ChachaPoly"
     env OPENSSL="$OPENSSL_NEXT" tests/compat.sh -e '^$' -f 'ARIA\|CHACHA'
@@ -2242,7 +2242,7 @@ component_test_no_use_psa_crypto_full_cmake_asan() {
     tests/compat.sh
 
     msg "test: compat.sh NULL (full minus MBEDTLS_USE_PSA_CRYPTO)"
-    env OPENSSL="$OPENSSL_LEGACY" GNUTLS_CLI="$GNUTLS_LEGACY_CLI" GNUTLS_SERV="$GNUTLS_LEGACY_SERV" tests/compat.sh -f 'NULL'
+    tests/compat.sh -f 'NULL'
 
     msg "test: compat.sh ARIA + ChachaPoly (full minus MBEDTLS_USE_PSA_CRYPTO)"
     env OPENSSL="$OPENSSL_NEXT" tests/compat.sh -e '^$' -f 'ARIA\|CHACHA'
diff --git a/tests/scripts/basic-build-test.sh b/tests/scripts/basic-build-test.sh
index 32be0eef16..69b25a4180 100755
--- a/tests/scripts/basic-build-test.sh
+++ b/tests/scripts/basic-build-test.sh
@@ -124,9 +124,7 @@ echo '################ compat.sh ################'
     sh compat.sh
     echo
 
-    echo '#### compat.sh: legacy (null)'
-    OPENSSL="$OPENSSL_LEGACY" \
-    GNUTLS_CLI="$GNUTLS_LEGACY_CLI" GNUTLS_SERV="$GNUTLS_LEGACY_SERV" \
+    echo '#### compat.sh: null cipher'
     sh compat.sh -e '^$' -f 'NULL'
     echo