diff --git a/src/lib/globals.ts b/src/lib/globals.ts
index 09867011ad..1617e016a1 100644
--- a/src/lib/globals.ts
+++ b/src/lib/globals.ts
@@ -3,7 +3,7 @@ import { AzleIc } from './ic/types/azle_ic';
 import { Buffer } from 'buffer';
 
 declare global {
-    var _azleIc: AzleIc;
+    var _azleIc: AzleIc | undefined;
     var _azleResolveIds: { [key: string]: (buf: ArrayBuffer) => void };
     var _azleRejectIds: { [key: string]: (err: any) => void };
     var _azleIcTimers: { [key: string]: string };
@@ -13,7 +13,7 @@ declare global {
 
 globalThis.TextDecoder = require('text-encoding').TextDecoder;
 globalThis.TextEncoder = require('text-encoding').TextEncoder;
-globalThis._azleIcTimers ||= {};
+globalThis._azleIcTimers = {};
 globalThis._azleResolveIds = {};
 globalThis._azleRejectIds = {};
 globalThis._azleTimerCallbackIds = {};
diff --git a/src/lib/ic/call_raw_128.ts b/src/lib/ic/call_raw_128.ts
index b1c6ea90e3..5c4d4bc778 100644
--- a/src/lib/ic/call_raw_128.ts
+++ b/src/lib/ic/call_raw_128.ts
@@ -28,6 +28,10 @@ export function callRaw128(
 
     // TODO this should use a Result remember
     return new Promise((resolve, reject) => {
+        if (globalThis._azleIc === undefined) {
+            return undefined as any;
+        }
+
         const promiseId = v4();
         const globalResolveId = `_resolve_${promiseId}`;
         const globalRejectId = `_reject_${promiseId}`;
diff --git a/src/lib/stable_b_tree_map.ts b/src/lib/stable_b_tree_map.ts
index b6f05c8540..bd41ff57b1 100644
--- a/src/lib/stable_b_tree_map.ts
+++ b/src/lib/stable_b_tree_map.ts
@@ -22,6 +22,10 @@ export function StableBTreeMap<
          * @returns `true` if the key exists in the map, `false` otherwise.
          */
         containsKey(key: TypeMapping<Key>): boolean {
+            if (globalThis._azleIc === undefined) {
+                return undefined as any;
+            }
+
             const candidEncodedMemoryId = encode(nat8, memoryId).buffer;
             const candidEncodedKey = encode(keyType, key).buffer;
 
@@ -36,6 +40,10 @@ export function StableBTreeMap<
          * @returns the value associated with the given key, if it exists.
          */
         get(key: TypeMapping<Key>): Opt<TypeMapping<Value>> {
+            if (globalThis._azleIc === undefined) {
+                return undefined as any;
+            }
+
             const candidEncodedMemoryId = encode(nat8, memoryId).buffer;
             const candidEncodedKey = encode(keyType, key).buffer;
 
@@ -60,6 +68,10 @@ export function StableBTreeMap<
             key: TypeMapping<Key>,
             value: TypeMapping<Value>
         ): Opt<TypeMapping<Value>> {
+            if (globalThis._azleIc === undefined) {
+                return undefined as any;
+            }
+
             const candidEncodedMemoryId = encode(nat8, memoryId).buffer;
             const candidEncodedKey = encode(keyType, key).buffer;
             const candidEncodedValue = encode(valueType, value).buffer;
@@ -82,6 +94,10 @@ export function StableBTreeMap<
          * @returns `true` if the map contains no elements, `false` otherwise.
          */
         isEmpty(): boolean {
+            if (globalThis._azleIc === undefined) {
+                return undefined as any;
+            }
+
             const candidEncodedMemoryId = encode(nat8, memoryId).buffer;
 
             return globalThis._azleIc.stableBTreeMapIsEmpty(
@@ -93,6 +109,10 @@ export function StableBTreeMap<
          * @returns tuples representing key/value pairs.
          */
         items(): [TypeMapping<Key>, TypeMapping<Value>][] {
+            if (globalThis._azleIc === undefined) {
+                return undefined as any;
+            }
+
             const candidEncodedMemoryId = encode(nat8, memoryId).buffer;
 
             const candidEncodedItems = globalThis._azleIc.stableBTreeMapItems(
@@ -112,6 +132,10 @@ export function StableBTreeMap<
          * @returns they keys in the map.
          */
         keys(): TypeMapping<Key>[] {
+            if (globalThis._azleIc === undefined) {
+                return undefined as any;
+            }
+
             const candidEncodedMemoryId = encode(nat8, memoryId).buffer;
 
             const candidEncodedKeys = globalThis._azleIc.stableBTreeMapKeys(
@@ -128,6 +152,10 @@ export function StableBTreeMap<
          * @returns the number of elements in the map.
          */
         len(): nat64 {
+            if (globalThis._azleIc === undefined) {
+                return undefined as any;
+            }
+
             const candidEncodedMemoryId = encode(nat8, memoryId).buffer;
 
             const candidEncodedLen = globalThis._azleIc.stableBTreeMapLen(
@@ -142,6 +170,10 @@ export function StableBTreeMap<
          * @returns the previous value at the key if it exists, `null` otherwise.
          */
         remove(key: TypeMapping<Key>): Opt<TypeMapping<Value>> {
+            if (globalThis._azleIc === undefined) {
+                return undefined as any;
+            }
+
             const candidEncodedMemoryId = encode(nat8, memoryId).buffer;
             const candidEncodedKey = encode(keyType, key).buffer;
 
@@ -161,6 +193,10 @@ export function StableBTreeMap<
          * @returns the values in the map.
          */
         values(): TypeMapping<Value>[] {
+            if (globalThis._azleIc === undefined) {
+                return undefined as any;
+            }
+
             const candidEncodedMemoryId = encode(nat8, memoryId).buffer;
 
             const candidEncodedValues = globalThis._azleIc.stableBTreeMapValues(