diff --git a/src/env.c b/src/env.c
index abbe817..f818e40 100644
--- a/src/env.c
+++ b/src/env.c
@@ -64,8 +64,9 @@ struct Environment envForLambda(const Object *params, const Object *arg_forms,
     for(int i = 0; i < paramCount; i++) {
         const char *newObjName = itemAt(params, i)->string;
         // Eval the `march` list
-        const Object newEnvObj = eval(march, outer);
+        Object newEnvObj = eval(march, outer);
         addToEnv(&env, newObjName, newEnvObj); // Could use eval_forms?
+        cleanObject(&newEnvObj);
         march = march->forward;
     }
 
diff --git a/src/pebblisp.c b/src/pebblisp.c
index 55cd717..5a55dcd 100644
--- a/src/pebblisp.c
+++ b/src/pebblisp.c
@@ -45,9 +45,12 @@ Object evalDefArgs(const Object *symbol, const Object *value, struct Environment
 
 Object evalIfArgs(const Object *argForms, struct Environment *env)
 {
-    return eval(argForms, env).number ?
+    Object condition = eval(argForms, env);
+    Object result = condition.number ?
             eval(argForms->forward, env) :
             eval(argForms->forward->forward, env);
+    cleanObject(&condition);
+    return result;
 }
 
 Object evalLambdaArgs(const Object *argForms)
@@ -242,7 +245,7 @@ Object evalList(const Object *obj, struct Environment *env)
         if(listLength(obj->list) == 0) {
             return cloneObject(*obj);
         }
-        return startList(cloneObject(eval(obj->list, env)));
+        return startList(eval(obj->list, env));
     }
 
     Object *first_form = obj->list;
@@ -735,7 +738,8 @@ Object parseEval(const char *input, struct Environment *env)
             cleanObject(&obj);
             Object parsed = parse(tok).obj;
             if(parsed.type == TYPE_ERROR) {
-                return parsed;
+                obj = parsed;
+                break;
             }
             if(tok[i].text[0] == ')') {
                 tok = &tok[i + 1];