diff --git a/tests/bin/test b/tests/bin/test
index 435c35202..2a5383e27 100755
--- a/tests/bin/test
+++ b/tests/bin/test
@@ -91,9 +91,11 @@ startDockerComposeServices ()
 
 configureWithArguments ()
 {
+    configureDockerComposeExecFlags
+
     # Commands
     #
-    DOCKER_COMPOSE_EXEC="${DOCKER_COMPOSE} exec -u `id -u`:`id -g`"
+    DOCKER_COMPOSE_EXEC="${DOCKER_COMPOSE} exec ${dockerComposeExecFlags}"
     COMPOSER_UPDATE='composer update --prefer-dist --no-suggest --optimize-autoloader'
 
     # Default Options
@@ -112,6 +114,30 @@ configureWithArguments ()
     else :; fi
 }
 
+configureDockerComposeExecFlags ()
+{
+    dockerComposeExecFlags="-u `id -u`:`id -g`"
+
+    if hasTty; then
+        :
+    else
+        dockerComposeExecFlags="${dockerComposeExecFlags} -T"
+    fi
+}
+
+hasTty ()
+{
+    test -t 0 || {
+        return 1
+    }
+
+    test -t 1 || {
+        return 1
+    }
+
+    return 0
+}
+
 populatePHPVersions ()
 {
     if test x'all' = x"${PHP_VERSIONS}"; then