diff --git a/changelogs/fragments/61933-ec2_transit_gateway-honor-auto_attach-setting.yaml b/changelogs/fragments/61933-ec2_transit_gateway-honor-auto_attach-setting.yaml
new file mode 100644
index 00000000000..0c949e4169e
--- /dev/null
+++ b/changelogs/fragments/61933-ec2_transit_gateway-honor-auto_attach-setting.yaml
@@ -0,0 +1,2 @@
+bugfixes:
+  - ec2_transit_gateway - fixed issue where auto_attach set to yes was not being honored (https://github.com/ansible/ansible/issues/61907)
diff --git a/lib/ansible/modules/cloud/amazon/ec2_transit_gateway.py b/lib/ansible/modules/cloud/amazon/ec2_transit_gateway.py
index 22c822d41d0..b08e7b19a41 100644
--- a/lib/ansible/modules/cloud/amazon/ec2_transit_gateway.py
+++ b/lib/ansible/modules/cloud/amazon/ec2_transit_gateway.py
@@ -367,7 +367,7 @@ class AnsibleEc2Tgw(object):
         if self._module.params.get('asn'):
             options['AmazonSideAsn'] = self._module.params.get('asn')
 
-        options['AutoAcceptSharedAttachments'] = self.enable_option_flag(self._module.params.get('auto_accept'))
+        options['AutoAcceptSharedAttachments'] = self.enable_option_flag(self._module.params.get('auto_attach'))
         options['DefaultRouteTableAssociation'] = self.enable_option_flag(self._module.params.get('auto_associate'))
         options['DefaultRouteTablePropagation'] = self.enable_option_flag(self._module.params.get('auto_propagate'))
         options['VpnEcmpSupport'] = self.enable_option_flag(self._module.params.get('vpn_ecmp_support'))