diff --git a/.gitignore b/.gitignore
index 4a5f0fc..95a1fe5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,6 @@
 **/*.o
 **/*~
 lc
-*.swp
+**/*.swp
+**/*.pdf
+**/*.dot
diff --git a/lc.c b/lc.c
index 0ec50fb..0d0ddbb 100644
--- a/lc.c
+++ b/lc.c
@@ -231,8 +231,7 @@ int main(void)
 	lexer *l = lexer_init(src, size, &a);
 	parser *p = parser_init(l, &a);
 	//print_ast(p->ast, 0);
-	sema *s = sema_init(p, &a);
-	//(void) s;
+	sema_init(p, &a);
 
 	ir_build(p->ast);
 
diff --git a/sema.c b/sema.c
index bb14821..4f6afb9 100644
--- a/sema.c
+++ b/sema.c
@@ -778,7 +778,7 @@ static void analyze_unit(sema *s, ast_node *node)
 	}
 }
 
-sema *sema_init(parser *p, arena *a)
+void sema_init(parser *p, arena *a)
 {
 	sema *s = arena_alloc(a, sizeof(sema));
 	s->allocator = a;
@@ -814,6 +814,4 @@ sema *sema_init(parser *p, arena *a)
 	const_float->data.flt = 0;
 
 	analyze_unit(s, s->ast);
-
-	return s;
 }
diff --git a/sema.h b/sema.h
index 84fab1c..4813675 100644
--- a/sema.h
+++ b/sema.h
@@ -71,6 +71,6 @@ typedef struct {
 	ast_node *ast;
 } sema;
 
-sema *sema_init(parser *p, arena *a);
+void sema_init(parser *p, arena *a);
 
 #endif