diff --git a/FreeRTOS-Plus/Demo/coreHTTP_Windows_Simulator/HTTP_S3_Download/DemoTasks/S3DownloadHTTPExample.c b/FreeRTOS-Plus/Demo/coreHTTP_Windows_Simulator/HTTP_S3_Download/DemoTasks/S3DownloadHTTPExample.c
index ac78ccd295..ca4b9e2dbf 100644
--- a/FreeRTOS-Plus/Demo/coreHTTP_Windows_Simulator/HTTP_S3_Download/DemoTasks/S3DownloadHTTPExample.c
+++ b/FreeRTOS-Plus/Demo/coreHTTP_Windows_Simulator/HTTP_S3_Download/DemoTasks/S3DownloadHTTPExample.c
@@ -476,7 +476,7 @@ static JSONStatus_t prvParseCredentials( HTTPResponse_t * pxResponse,
  * @return pdPASS on success, pdFAIL on failure.
  */
 static BaseType_t prvGetTemporaryCredentials( TransportInterface_t * pxTransportInterface,
-                                              const char * pcDateISO8601,
+                                              char * pcDateISO8601,
                                               size_t xDateISO8601Len,
                                               HTTPResponse_t * pxResponse,
                                               SigV4Credentials_t * pxSigvCreds );
@@ -582,6 +582,10 @@ void vStartSimpleHTTPDemo( void )
 
 /*-----------------------------------------------------------*/
 
+extern BaseType_t xPlatformIsNetworkUp( void );
+
+/*-----------------------------------------------------------*/
+
 /**
  * @brief Entry point of the demo.
  *
@@ -1177,7 +1181,7 @@ static BaseType_t prvDownloadS3ObjectFile( const TransportInterface_t * pxTransp
 }
 
 static BaseType_t prvGetTemporaryCredentials( TransportInterface_t * pxTransportInterface,
-                                              const char * pcDateISO8601,
+                                              char * pcDateISO8601,
                                               size_t xDateISO8601Len,
                                               HTTPResponse_t * pxResponse,
                                               SigV4Credentials_t * pxSigvCreds )