diff --git a/src/memory.cpp b/src/memory.cpp
index 9b37351..1f3f620 100644
--- a/src/memory.cpp
+++ b/src/memory.cpp
@@ -79,6 +79,14 @@ void Memory::update(string identifier, EvalResult value) {
             scope.vars[identifier].initialized = true;
             return;
         }
+        if (scope.type == ScopeType::Function) {
+            Closure closure = std::get<1>(std::get<Function>(scope.fn->value));
+            if (closure.contains(identifier)) {
+                MemoryVar& var = closure.at(identifier);
+                var.value = value;
+                var.initialized = true;
+            }
+        }
     }
     
     throw exception();