diff --git a/scripts/travisci-test-new-extensions b/scripts/travisci-test-new-extensions
index 27160e1..7d2c7ae 100755
--- a/scripts/travisci-test-new-extensions
+++ b/scripts/travisci-test-new-extensions
@@ -56,11 +56,11 @@ testExtension () {
 	if test -n "$(printf '%s' "${2}" | sed -E 's/^[0-9]+\.[0-9]+$//')"
 	then
 		printf '  INVALID PHP VERSION: %s\n' "${2}" >&2
-		exit 1
+		return 0
 	fi
 	testExtension_Image="$(getExtensionImage "${1}" "${2}")"
 	printf ' - Docker image: %s\n' "${testExtension_Image}"
-	docker run --rm --volume "${TRAVIS_BUILD_DIR}:/app" --workdir /app "${testExtension_Image}" ./install-php-extensions "${1}"
+	docker run --rm --volume "${TRAVIS_BUILD_DIR}:/app" --workdir /app "${testExtension_Image}" bash -c "./install-php-extensions ${1} && php -m"
 }
 
 # Test a new extension line