diff --git a/tests/compose/core/mailu.env b/tests/compose/core/mailu.env
index f18422f4..d77f3a2d 100644
--- a/tests/compose/core/mailu.env
+++ b/tests/compose/core/mailu.env
@@ -6,8 +6,6 @@
 # For a detailed list of configuration variables, see the documentation at
 # https://mailu.io
 
-DISABLE_FTS_LUCENE=true
-
 ###################################
 # Common configuration variables
 ###################################