diff --git a/Makefile b/Makefile
index 318d0b6..fb04c74 100644
--- a/Makefile
+++ b/Makefile
@@ -77,4 +77,5 @@ shell-scratch:
 # Run help coverage check
 coverage:
 	@echo "Checking help coverage..."
-	docker run --rm tabledevil/file-analysis:latest check-help-coverage.sh
+	@docker run --rm tabledevil/file-analysis:latest /usr/local/bin/check-help-coverage.sh || \
+		(echo "" && echo "Error: Image not built or outdated. Run 'make build' first." && exit 1)