diff --git a/.gitignore b/.gitignore
index b658e26..a99743d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,4 +13,5 @@ MANIFEST
 newdb.h
 newdb.c
 cheat
-advent.info
\ No newline at end of file
+advent.info
+coverage/*
\ No newline at end of file
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4553126..20e466b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -88,11 +88,7 @@ test:debug:
     - apk add make gcc
     - apk add lcov --update-cache --repository http://dl-3.alpinelinux.org/alpine/edge/testing/ --allow-untrusted
   script:
-    - cd tests
-    - make
-    - cd ..
-    - lcov -t "advent" -o advent.info -c -d .
-    - genhtml -o coverage advent.info
+    - make coverage
   artifacts:
     paths:
       - coverage
diff --git a/Makefile b/Makefile
index 6e24549..d9436e0 100644
--- a/Makefile
+++ b/Makefile
@@ -152,3 +152,8 @@ linty: advent
 debug: CCFLAGS += -O0 --coverage -ggdb
 debug: linty
 debug: cheat
+
+coverage: debug check
+	lcov -t "advent" -o advent.info -c -d .
+	genhtml -o coverage/ advent.info
+