diff --git a/.travis/test_04_install.sh b/.travis/test_04_install.sh
index 75de71c583..94d9ccb32d 100755
--- a/.travis/test_04_install.sh
+++ b/.travis/test_04_install.sh
@@ -9,7 +9,7 @@ export LC_ALL=C.UTF-8
 travis_retry docker pull "$DOCKER_NAME_TAG"
 export TSAN_OPTIONS="suppressions=${TRAVIS_BUILD_DIR}/test/sanitizer_suppressions/tsan"
 export UBSAN_OPTIONS="suppressions=${TRAVIS_BUILD_DIR}/test/sanitizer_suppressions/ubsan:print_stacktrace=1:halt_on_error=1"
-env | grep -E '^(CCACHE_|WINEDEBUG|LC_ALL|BOOST_TEST_RANDOM|CONFIG_SHELL|(TSAN|UBSAN)_OPTIONS)' | tee /tmp/env
+env | grep -E '^(BITCOIN_CONFIG|CCACHE_|WINEDEBUG|LC_ALL|BOOST_TEST_RANDOM|CONFIG_SHELL|(TSAN|UBSAN)_OPTIONS)' | tee /tmp/env
 if [[ $HOST = *-mingw32 ]]; then
   DOCKER_ADMIN="--cap-add SYS_ADMIN"
 fi
diff --git a/test/functional/p2p_invalid_messages.py b/test/functional/p2p_invalid_messages.py
index 3ee67980a4..65997a5f9d 100755
--- a/test/functional/p2p_invalid_messages.py
+++ b/test/functional/p2p_invalid_messages.py
@@ -3,6 +3,7 @@
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test node responses to invalid network messages."""
+import os
 import struct
 
 from test_framework import messages
@@ -66,7 +67,10 @@ def run_test(self):
         msg_at_size = msg_unrecognized("b" * valid_data_limit)
         assert len(msg_at_size.serialize()) == msg_limit
 
-        with node.assert_memory_usage_stable(increase_allowed=0.5):
+        increase_allowed = 0.5
+        if [s for s in os.environ.get("BITCOIN_CONFIG", "").split(" ") if "--with-sanitizers" in s and "address" in s]:
+            increase_allowed = 3.5
+        with node.assert_memory_usage_stable(increase_allowed=increase_allowed):
             self.log.info(
                 "Sending a bunch of large, junk messages to test "
                 "memory exhaustion. May take a bit...")