diff --git a/src/azure-cli/azure/cli/command_modules/acr/_docker_utils.py b/src/azure-cli/azure/cli/command_modules/acr/_docker_utils.py
index f94eaf72667..0f49eec6870 100644
--- a/src/azure-cli/azure/cli/command_modules/acr/_docker_utils.py
+++ b/src/azure-cli/azure/cli/command_modules/acr/_docker_utils.py
@@ -160,7 +160,7 @@ def _get_aad_token_after_challenge(cli_ctx,
     }
 
     logger.debug(add_timestamp("Sending a HTTP Post request to {}".format(authhost)))
-    response = requests.post(authhost, urlencode(content), headers=headers,
+    response = requests.post(url=authhost, data=urlencode(content), headers=headers,
                              verify=not should_disable_connection_verify())
 
     if response.status_code == 429: