diff --git a/lib/common/mock.ts b/lib/common/mock.ts
index ab83343f13..e5858bb318 100644
--- a/lib/common/mock.ts
+++ b/lib/common/mock.ts
@@ -154,8 +154,8 @@ const applyOverrides = (instance: any, mockOf: any, injector?: Injector): void =
   if (instance.__ngMocksConfig.init) {
     callbacks.push(instance.__ngMocksConfig.init);
   }
-  if (ngMocksUniverse.config.get(mockOf)?.init) {
-    callbacks.push(ngMocksUniverse.config.get(mockOf).init);
+  if (ngMocksUniverse.configInstance.get(mockOf)?.init) {
+    callbacks.push(ngMocksUniverse.configInstance.get(mockOf).init);
   }
 
   for (const callback of callbacks) {
diff --git a/lib/common/ng-mocks-universe.ts b/lib/common/ng-mocks-universe.ts
index 66dc99267f..57209d9845 100644
--- a/lib/common/ng-mocks-universe.ts
+++ b/lib/common/ng-mocks-universe.ts
@@ -12,6 +12,7 @@ interface NgMocksUniverse {
   cacheDeclarations: Map<any, any>;
   cacheProviders: Map<any, any>;
   config: Map<any, any>;
+  configInstance: Map<any, any>;
   flags: Set<string>;
   getLocalMocks: () => Array<[any, any]>;
   getOverrides: () => Map<any, any>;
@@ -29,6 +30,7 @@ ngMocksUniverse.builtProviders = new Map();
 ngMocksUniverse.cacheDeclarations = new Map();
 ngMocksUniverse.cacheProviders = new Map();
 ngMocksUniverse.config = new Map();
+ngMocksUniverse.configInstance = new Map();
 ngMocksUniverse.flags = new Set(coreConfig.flags);
 ngMocksUniverse.global = new Map();
 ngMocksUniverse.touches = new Set();
diff --git a/lib/mock-builder/mock-builder-stash.ts b/lib/mock-builder/mock-builder-stash.ts
index f29635f84b..cc0e6b103d 100644
--- a/lib/mock-builder/mock-builder-stash.ts
+++ b/lib/mock-builder/mock-builder-stash.ts
@@ -11,6 +11,7 @@ export class MockBuilderStash {
       cacheDeclarations: ngMocksUniverse.cacheDeclarations,
       cacheProviders: ngMocksUniverse.cacheProviders,
       config: ngMocksUniverse.config,
+      configInstance: ngMocksUniverse.configInstance,
       flags: ngMocksUniverse.flags,
       touches: ngMocksUniverse.touches,
     };
@@ -20,6 +21,7 @@ export class MockBuilderStash {
     ngMocksUniverse.cacheDeclarations = new Map();
     ngMocksUniverse.cacheProviders = new Map();
     ngMocksUniverse.config = new Map();
+    ngMocksUniverse.configInstance = new Map();
     ngMocksUniverse.flags = new Set(coreConfig.flags);
     ngMocksUniverse.touches = new Set();
   }
diff --git a/lib/mock-helper/mock-helper.reset.ts b/lib/mock-helper/mock-helper.reset.ts
index 75518f8249..161cfeb07d 100644
--- a/lib/mock-helper/mock-helper.reset.ts
+++ b/lib/mock-helper/mock-helper.reset.ts
@@ -6,6 +6,7 @@ export default (): void => {
   ngMocksUniverse.cacheDeclarations = new Map();
   ngMocksUniverse.cacheProviders = new Map();
   ngMocksUniverse.config = new Map();
+  ngMocksUniverse.configInstance = new Map();
   ngMocksUniverse.flags = new Set(coreConfig.flags);
   ngMocksUniverse.touches = new Set();
 };
diff --git a/lib/mock-instance/mock-instance.ts b/lib/mock-instance/mock-instance.ts
index a713d56b68..d4e56f9611 100644
--- a/lib/mock-instance/mock-instance.ts
+++ b/lib/mock-instance/mock-instance.ts
@@ -18,8 +18,10 @@ const reporter: jasmine.CustomReporter = {
     const set = ngMocksUniverse.getLocalMocks();
     while (set.length) {
       const [declaration, config] = set.pop() || /* istanbul ignore next */ [];
-      const universeConfig = ngMocksUniverse.config.has(declaration) ? ngMocksUniverse.config.get(declaration) : {};
-      ngMocksUniverse.config.set(declaration, {
+      const universeConfig = ngMocksUniverse.configInstance.has(declaration)
+        ? ngMocksUniverse.configInstance.get(declaration)
+        : {};
+      ngMocksUniverse.configInstance.set(declaration, {
         ...universeConfig,
         ...config,
       });
@@ -71,16 +73,18 @@ export function MockInstance<T>(
 
 export function MockInstance<T>(declaration: Type<T> | AbstractType<T> | InjectionToken<T>, data?: any) {
   const config = typeof data === 'function' ? { init: data } : data;
-  const universeConfig = ngMocksUniverse.config.has(declaration) ? ngMocksUniverse.config.get(declaration) : {};
+  const universeConfig = ngMocksUniverse.configInstance.has(declaration)
+    ? ngMocksUniverse.configInstance.get(declaration)
+    : {};
   restore(declaration, universeConfig);
 
   if (config) {
-    ngMocksUniverse.config.set(declaration, {
+    ngMocksUniverse.configInstance.set(declaration, {
       ...universeConfig,
       ...config,
     });
   } else {
-    ngMocksUniverse.config.set(declaration, {
+    ngMocksUniverse.configInstance.set(declaration, {
       ...universeConfig,
       init: undefined,
     });
@@ -88,5 +92,5 @@ export function MockInstance<T>(declaration: Type<T> | AbstractType<T> | Injecti
 }
 
 export function MockReset() {
-  ngMocksUniverse.config.clear();
+  ngMocksUniverse.configInstance.clear();
 }
diff --git a/lib/mock-service/helper.use-factory.ts b/lib/mock-service/helper.use-factory.ts
index 2e3d275aae..a829533f44 100644
--- a/lib/mock-service/helper.use-factory.ts
+++ b/lib/mock-service/helper.use-factory.ts
@@ -49,8 +49,8 @@ export default <D, I>(
     if (overrides) {
       callbacks.push(overrides);
     }
-    if (ngMocksUniverse.config.get(def)?.init) {
-      callbacks.push(ngMocksUniverse.config.get(def).init);
+    if (ngMocksUniverse.configInstance.get(def)?.init) {
+      callbacks.push(ngMocksUniverse.configInstance.get(def).init);
     }
 
     return applyCallback(def, instance, callbacks, injector, overrides);