diff --git a/packages/binding-coap/src/coap-server.ts b/packages/binding-coap/src/coap-server.ts
index d316e25a8..04ecb5d3f 100644
--- a/packages/binding-coap/src/coap-server.ts
+++ b/packages/binding-coap/src/coap-server.ts
@@ -475,7 +475,7 @@ export default class CoapServer implements ProtocolServer {
                 if (req.headers.Observe == null) {
                     this.handleReadProperty(property, req, contentType, thing, res, affordanceKey);
                 } else {
-                    this.handleObserveProperty(req, thing, res, affordanceKey);
+                    this.handleObserveProperty(property, req, contentType, thing, res, affordanceKey);
                 }
                 break;
             case "PUT":
@@ -517,15 +517,25 @@ export default class CoapServer implements ProtocolServer {
     }
 
     private async handleObserveProperty(
+        property: PropertyElement,
         req: IncomingMessage,
+        contentType: string,
         thing: ExposedThing,
         res: OutgoingMessage,
         affordanceKey: string
     ) {
+        const interactionOptions = this.createInteractionOptions(
+            property.forms,
+            thing,
+            req,
+            contentType,
+            property.uriVariables
+        );
+
         const listener = this.createContentListener(req, res, this.PROPERTY_DIR, affordanceKey);
 
         try {
-            await thing.handleObserveProperty(affordanceKey, listener);
+            await thing.handleObserveProperty(affordanceKey, listener, interactionOptions);
         } catch (error) {
             warn(`${error}`);
         }
@@ -536,10 +546,10 @@ export default class CoapServer implements ProtocolServer {
             if (err) {
                 error(`CoapServer on port ${this.port} failed on observe with: ${err.message}`);
             }
-            thing.handleUnobserveProperty(affordanceKey, listener);
+            thing.handleUnobserveProperty(affordanceKey, listener, interactionOptions);
         });
 
-        setTimeout(() => thing.handleUnobserveProperty(affordanceKey, listener), 60 * 60 * 1000);
+        setTimeout(() => thing.handleUnobserveProperty(affordanceKey, listener, interactionOptions), 60 * 60 * 1000);
     }
 
     private createContentListener(