diff --git a/extra/math/primes/lists/lists-tests.factor b/extra/math/primes/lists/lists-tests.factor
index 3bd7d70365..5af13415e4 100644
--- a/extra/math/primes/lists/lists-tests.factor
+++ b/extra/math/primes/lists/lists-tests.factor
@@ -1,4 +1,4 @@
-USING: lists.lazy math.primes.lists tools.test ;
+USING: lists lists.lazy math.primes.lists tools.test ;
 
 { { 2 3 5 7 11 13 17 19 23 29 } } [ 10 lprimes ltake list>array ] unit-test
 { { 101 103 107 109 113 } } [ 5 100 lprimes-from ltake list>array ] unit-test