diff --git a/test/integration/api/run.bats b/test/integration/api/run.bats
index 383da53d3d..40cf7a082e 100644
--- a/test/integration/api/run.bats
+++ b/test/integration/api/run.bats
@@ -178,5 +178,5 @@ function teardown() {
 
 	# check error message
 	[ "$status" -ne 0 ]
-	[[ "${output}" == *"Plugin not found"* ]]
+	[[ "${output,,}" == *"plugin not found"* ]]
 }