diff --git a/nixops_aws/backends/ec2.py b/nixops_aws/backends/ec2.py
index 45a28097..d8973998 100644
--- a/nixops_aws/backends/ec2.py
+++ b/nixops_aws/backends/ec2.py
@@ -336,8 +336,9 @@ def resource_id(self):
         return self.vm_id
 
     def address_to(self, m):
-        if isinstance(m, EC2State):  # FIXME: only if we're in the same region
-            return m.private_ipv4
+        if isinstance(m, EC2State):
+            if self.region == m.region:
+                return m.private_ipv4
         return super().address_to(m)
 
     def _connect(self):