diff --git a/Makefile.in b/Makefile.in
index e0f29dc..da47e1c 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -69,10 +69,10 @@ include $(PROJECT_DIR)/project/overrides.mk
 
 
 
-src/%.lo: 	$(PROJECT_DIR)/src/%.c $(ALL_HEADERS) host.tag
+src/%.lo: 	$(PROJECT_DIR)/src/%.c $(ALL_HEADERS) host.tag tree.tag
 		$(CC) -c -o $@ $< $(CFLAGS_SHARED)
 
-src/%.o: 	$(PROJECT_DIR)/src/%.c $(ALL_HEADERS) host.tag
+src/%.o: 	$(PROJECT_DIR)/src/%.c $(ALL_HEADERS) host.tag tree.tag
 		$(CC) -c -o $@ $< $(CFLAGS_STATIC)
 
 $(LIBDIR)/%$(OS_LIB_SUFFIX):
diff --git a/project/arch.mk b/project/arch.mk
index 36202e2..750987b 100644
--- a/project/arch.mk
+++ b/project/arch.mk
@@ -6,8 +6,8 @@ else ifeq ($(ARCH),w64)
 endif
 
 # process
-src/process/%.lo: $(PROJECT_DIR)/src/process/$(ARCH)/%.s $(ALL_HEADERS) host.tag
+src/process/%.lo: $(PROJECT_DIR)/src/process/$(ARCH)/%.s $(ALL_HEADERS) host.tag tree.tag
 		$(CC) -c -o $@ $<
 
-src/process/%.o: $(PROJECT_DIR)/src/process/$(ARCH)/%.s $(ALL_HEADERS) host.tag
+src/process/%.o: $(PROJECT_DIR)/src/process/$(ARCH)/%.s $(ALL_HEADERS) host.tag tree.tag
 		$(CC) -c -o $@ $<