diff --git a/pkg/urbit/Makefile b/pkg/urbit/Makefile
index 95be411281..d734c4a846 100644
--- a/pkg/urbit/Makefile
+++ b/pkg/urbit/Makefile
@@ -15,7 +15,7 @@ worker_objs = $(shell echo $(worker) | sed 's/\.c/.o/g')
 
 all_objs = $(common_objs) $(daemon_objs) $(worker_objs)
 all_srcs = $(common) $(daemon) $(worker)
-all_exes = ./hash_tests ./hashtable_tests ./urbit ./urbit-worker
+all_exes = ./mug_tests ./hashtable_tests ./urbit ./urbit-worker
 
 
 # -Werror promotes all warnings that are enabled into errors (this is on)
@@ -29,11 +29,11 @@ CFLAGS := $(CFLAGS)
 
 ################################################################################
 
-all: urbit urbit-worker hashtable_tests hash_tests
+all: urbit urbit-worker hashtable_tests mug_tests
 
-test: hashtable_tests hash_tests
+test: hashtable_tests mug_tests
 	./hashtable_tests
-	./hash_tests
+	./mug_tests
 
 clean:
 	rm -f ./tags $(all_objs) $(all_exes)
@@ -47,7 +47,7 @@ hashtable_tests: $(common_objs) tests/hashtable_tests.o
 	@echo CC -o $@
 	@$(CC) $^ $(LDFLAGS) -o $@
 
-hash_tests: $(common_objs) tests/hash_tests.o
+mug_tests: $(common_objs) tests/mug_tests.o
 	@echo CC -o $@
 	@$(CC) $^ $(LDFLAGS) -o $@
 
diff --git a/pkg/urbit/tests/hash_tests.c b/pkg/urbit/tests/mug_tests.c
similarity index 100%
rename from pkg/urbit/tests/hash_tests.c
rename to pkg/urbit/tests/mug_tests.c