diff --git a/src/libexpr/tests/local.mk b/src/libexpr/tests/local.mk
index cb1c4a977..b95980cab 100644
--- a/src/libexpr/tests/local.mk
+++ b/src/libexpr/tests/local.mk
@@ -10,6 +10,6 @@ libexpr-tests_SOURCES := $(wildcard $(d)/*.cc)
 
 libexpr-tests_CXXFLAGS += -I src/libexpr -I src/libutil -I src/libstore -I src/libexpr/tests
 
-libexpr-tests_LIBS = libexpr libutil libstore
+libexpr-tests_LIBS = libexpr libutil libstore libfetchers
 
 libexpr-tests_LDFLAGS := $(GTEST_LIBS) -lgmock