diff --git a/tests/impure-derivations.sh b/tests/impure-derivations.sh
index 35ae3f5d3..7ca9ce742 100644
--- a/tests/impure-derivations.sh
+++ b/tests/impure-derivations.sh
@@ -2,7 +2,7 @@ source common.sh
 
 requireDaemonNewerThan "2.8pre20220311"
 
-enableFeatures "ca-derivations ca-references impure-derivations"
+enableFeatures "ca-derivations impure-derivations"
 restartDaemon
 
 set -o pipefail