diff --git a/src/ast_printer.zig b/src/ast_printer.zig
index fd628ca..6b8f85c 100644
--- a/src/ast_printer.zig
+++ b/src/ast_printer.zig
@@ -345,9 +345,8 @@ fn prettyType(typ: SymbolUnderlyingType) []const u8 {
 pub fn printScope(scope: *Scope, ident: usize) void {
     print(ident, "scope '{}' at addr {}\n", .{ scope.id, @ptrToInt(scope) });
 
-    var it = scope.env.iterator();
-    while (it.next()) |kv| {
-        print(ident + 1, "sym: {}, typ: {}\n", .{ kv.key, prettyType(kv.value) });
+    while (scope.env.items()) |entry| {
+        print(ident + 1, "sym: {}, typ: {}\n", .{ entry.key, prettyType(entry.value) });
     }
 
     for (scope.children.items) |child| {
diff --git a/src/codegen/llvm.zig b/src/codegen/llvm.zig
index aa6647d..890b64d 100644
--- a/src/codegen/llvm.zig
+++ b/src/codegen/llvm.zig
@@ -427,7 +427,7 @@ pub const Codegen = struct {
                 var llvm_ret_type = llvm.LLVMFunctionType(
                     try self.typeToLLVM(fn_sym.return_type),
                     param_types.items.ptr,
-                    @intCast(c_uint, param_types.len),
+                    @intCast(c_uint, param_types.items.len),
                     0,
                 );