diff --git a/lib/plugins/aws/package/compile/events/stream/index.js b/lib/plugins/aws/package/compile/events/stream/index.js
index a51a1628afec..38db6250821b 100644
--- a/lib/plugins/aws/package/compile/events/stream/index.js
+++ b/lib/plugins/aws/package/compile/events/stream/index.js
@@ -42,20 +42,24 @@ class AwsCompileStreamEvents {
                     {
                       type: 'object',
                       properties: {
-                        arn: { $ref: '#/definitions/awsArnString' },
+                        arn: { $ref: '#/definitions/awsArn' },
                         type: { enum: ['sns', 'sqs'] },
                       },
                       additionalProperties: false,
                       required: ['arn'],
-                    },
-                    {
-                      type: 'object',
-                      properties: {
-                        arn: { $ref: '#/definitions/awsCfFunction' },
-                        type: { enum: ['sns', 'sqs'] },
-                      },
-                      additionalProperties: false,
-                      required: ['arn', 'type'],
+                      oneOf: [
+                        {
+                          properties: {
+                            arn: { $ref: '#/definitions/awsCfFunction' },
+                          },
+                          required: ['type'],
+                        },
+                        {
+                          properties: {
+                            arn: { $ref: '#/definitions/awsArnString' },
+                          },
+                        },
+                      ],
                     },
                   ],
                 },
@@ -66,6 +70,19 @@ class AwsCompileStreamEvents {
           },
           additionalProperties: false,
           required: ['arn'],
+          oneOf: [
+            {
+              properties: {
+                arn: { $ref: '#/definitions/awsCfFunction' },
+              },
+              required: ['type'],
+            },
+            {
+              properties: {
+                arn: { $ref: '#/definitions/awsArnString' },
+              },
+            },
+          ],
         },
       ],
     });
@@ -131,18 +148,6 @@ class AwsCompileStreamEvents {
             let Enabled = true;
 
             if (typeof event.stream === 'object') {
-              if (typeof event.stream.arn !== 'string') {
-                // for dynamic arns (GetAtt/ImportValue)
-                if (!event.stream.type) {
-                  const errorMessage = [
-                    `Missing "type" property for stream event in function "${functionName}"`,
-                    ' If the "arn" property on a stream is a complex type (such as Fn::GetAtt)',
-                    ' then a "type" must be provided for the stream, either "kinesis" or,',
-                    ' "dynamodb". Please check the docs for more info.',
-                  ].join('');
-                  throw new this.serverless.classes.Error(errorMessage);
-                }
-              }
               EventSourceArn = event.stream.arn;
               BatchSize = event.stream.batchSize || BatchSize;
               if (event.stream.parallelizationFactor) {