diff --git a/t/Makefile b/t/Makefile
index 0d65cedaa6..aa952e1c5c 100644
--- a/t/Makefile
+++ b/t/Makefile
@@ -14,7 +14,8 @@ SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
 T = $(wildcard t[0-9][0-9][0-9][0-9]-*.sh)
 TSVN = $(wildcard t91[0-9][0-9]-*.sh)
 
-all: pre-clean $(T) aggregate-results clean
+all: pre-clean
+	$(MAKE) aggregate-results-and-cleanup
 
 $(T):
 	@echo "*** $@ ***"; GIT_CONFIG=.git/config '$(SHELL_PATH_SQ)' $@ $(GIT_TEST_OPTS)
@@ -25,6 +26,10 @@ pre-clean:
 clean:
 	$(RM) -r 'trash directory' test-results
 
+aggregate-results-and-cleanup: $(T)
+	$(MAKE) aggregate-results
+	$(MAKE) clean
+
 aggregate-results:
 	'$(SHELL_PATH_SQ)' ./aggregate-results.sh test-results/t*-*