diff --git a/API.md b/API.md
index 7c65d08c..1630268e 100644
--- a/API.md
+++ b/API.md
@@ -153,7 +153,7 @@ Name | Type | Description
 -----|------|-------------
 **secret** | <code>[aws_secretsmanager.ISecret](#aws-cdk-lib-aws-secretsmanager-isecret)</code> | Reference to secret where credentials are stored.
 **passwordKey**? | <code>string</code> | Key containing password.<br/>__*Optional*__
-**usenameKey**? | <code>string</code> | Key containing username.<br/>__*Optional*__
+**usernameKey**? | <code>string</code> | Key containing username.<br/>__*Optional*__
 
 
 
diff --git a/src/types.ts b/src/types.ts
index 0b1ebc1c..401e2e61 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -126,7 +126,7 @@ export interface ISecret {
   /**
        * Key containing username
        */
-  usenameKey?: string;
+  usernameKey?: string;
   /**
        * Key containing password
        */
diff --git a/src/utils.ts b/src/utils.ts
index 667b4a2e..394f445c 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -4,6 +4,6 @@ import { ICredentials, LambdaCredentials } from './types';
 export const formatCredentials = (creds?: ICredentials): LambdaCredentials => ({
   plainText: creds?.plainText ? `${creds?.plainText?.userName}:${creds?.plainText?.password}` : undefined,
   secretArn: creds?.secretManager?.secret.secretArn,
-  usernameKey: creds?.secretManager?.usenameKey,
+  usernameKey: creds?.secretManager?.usernameKey,
   passwordKey: creds?.secretManager?.passwordKey,
 });
\ No newline at end of file
diff --git a/test/__snapshots__/index.test.ts.snap b/test/__snapshots__/index.test.ts.snap
index cdf1105c..df74d69d 100644
--- a/test/__snapshots__/index.test.ts.snap
+++ b/test/__snapshots__/index.test.ts.snap
@@ -20,7 +20,7 @@ Object {
           "S3Bucket": Object {
             "Fn::Sub": "cdk-hnb659fds-assets-\${AWS::AccountId}-\${AWS::Region}",
           },
-          "S3Key": "5102bb1318c08893eb56f912541f0b197db7c5707a41db9f45e5a64797787216.zip",
+          "S3Key": "b4d087fb15ca781f37ef315bf184159b9fdf59252f0f0501bbbea2775da58a53.zip",
         },
         "Environment": Object {
           "Variables": Object {
@@ -922,7 +922,7 @@ Object {
           "S3Bucket": Object {
             "Fn::Sub": "cdk-hnb659fds-assets-\${AWS::AccountId}-\${AWS::Region}",
           },
-          "S3Key": "5102bb1318c08893eb56f912541f0b197db7c5707a41db9f45e5a64797787216.zip",
+          "S3Key": "b4d087fb15ca781f37ef315bf184159b9fdf59252f0f0501bbbea2775da58a53.zip",
         },
         "Environment": Object {
           "Variables": Object {
@@ -2332,7 +2332,7 @@ Object {
           "S3Bucket": Object {
             "Fn::Sub": "cdk-hnb659fds-assets-\${AWS::AccountId}-\${AWS::Region}",
           },
-          "S3Key": "5102bb1318c08893eb56f912541f0b197db7c5707a41db9f45e5a64797787216.zip",
+          "S3Key": "b4d087fb15ca781f37ef315bf184159b9fdf59252f0f0501bbbea2775da58a53.zip",
         },
         "Environment": Object {
           "Variables": Object {
@@ -2599,7 +2599,7 @@ Object {
           "S3Bucket": Object {
             "Fn::Sub": "cdk-hnb659fds-assets-\${AWS::AccountId}-\${AWS::Region}",
           },
-          "S3Key": "5102bb1318c08893eb56f912541f0b197db7c5707a41db9f45e5a64797787216.zip",
+          "S3Key": "b4d087fb15ca781f37ef315bf184159b9fdf59252f0f0501bbbea2775da58a53.zip",
         },
         "Environment": Object {
           "Variables": Object {
diff --git a/test/index.test.ts b/test/index.test.ts
index 4db58e60..2ff0f950 100644
--- a/test/index.test.ts
+++ b/test/index.test.ts
@@ -95,7 +95,7 @@ describe('stack with key-value secret', () => {
     src: new DockerImageName('javacs3/javacs3:latest', {
       secretManager: {
         secret: sm.Secret.fromSecretNameV2(stack, 'SrcSecret', 'key-value-secret'),
-        usenameKey: 'username',
+        usernameKey: 'username',
         passwordKey: 'password',
       },
     }),