diff --git a/mk/tests.mk b/mk/tests.mk
index 0d1067a87e0..2fb33eb7db8 100644
--- a/mk/tests.mk
+++ b/mk/tests.mk
@@ -22,8 +22,7 @@ $(eval $(call RUST_CRATE,coretest))
 DEPS_collectionstest :=
 $(eval $(call RUST_CRATE,collectionstest))
 
-TEST_TARGET_CRATES = $(filter-out core unicode,$(TARGET_CRATES)) \
-										 collectionstest coretest
+TEST_TARGET_CRATES = $(filter-out core unicode,$(TARGET_CRATES)) collectionstest coretest
 TEST_DOC_CRATES = $(DOC_CRATES)
 TEST_HOST_CRATES = $(filter-out rustc_typeck rustc_borrowck rustc_resolve rustc_trans rustc_lint,\
                      $(HOST_CRATES))