diff --git a/Makefile b/Makefile
index 525cff6..71415bc 100644
--- a/Makefile
+++ b/Makefile
@@ -55,6 +55,7 @@
 	@hurl --test */tests.hurl
 
 test-report-all: ## Launch tests for all directories
+	@rm -rf tests-results
 	@hurl --test */tests.hurl --report-html tests-results
 
 # Remove error message about lacking rules for targets' parameters