diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 95450af5..ca29fca5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,3 +25,16 @@ jobs:
     - uses: actions/checkout@v3
     - name: Run make check-valgrind
       run: make check-valgrind
+
+  make-lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Install cppcheck
+        run: |
+          sudo apt install cppcheck -y
+          echo "cppcheck installed"
+
+      - uses: actions/checkout@v3
+      - name: Run make lint
+        run: make lint
diff --git a/Makefile b/Makefile
index e8235f5d..0739fdf6 100644
--- a/Makefile
+++ b/Makefile
@@ -137,4 +137,13 @@ docs-publish:
 tags: $(SOURCES)
 	ctags -Re -f TAGS src/
 
+wc:
+	@echo "LINES\tWORDS\tMAX-LINE"
+	@find src -regextype posix-extended -regex ".*\.(c|h)" \
+		| xargs wc --lines --words --max-line-length \
+        | sort -n
+
+lint:
+	cppcheck $(SRCDIR)
+
 .PHONY: clean docs
diff --git a/src/graph/graph.c b/src/graph/graph.c
index 96014eef..5a3c4bf6 100644
--- a/src/graph/graph.c
+++ b/src/graph/graph.c
@@ -8,8 +8,8 @@
 struct Graph {
     HashTableGen *adj;
     bool directed; // true by default
-    bool weighted;
-    bool tarjan; // false by default
+    bool weighted; // false by default
+    bool tarjan;   // false by default
 };
 
 Graph* graph_create() {
diff --git a/src/list/single/list-gen.h b/src/list/single/list-gen.h
index ec3a0513..ec89598d 100644
--- a/src/list/single/list-gen.h
+++ b/src/list/single/list-gen.h
@@ -131,4 +131,4 @@ ListGen* list_gen_concat(ListGen *l1, ListGen *l2);
  */
 void list_gen_println_reverse(ListGen *l);
 
-#endif
\ No newline at end of file
+#endif