diff --git a/src/ndiaudiosrc.rs b/src/ndiaudiosrc.rs
index 268c4b194..6e603ffa7 100644
--- a/src/ndiaudiosrc.rs
+++ b/src/ndiaudiosrc.rs
@@ -309,7 +309,13 @@ impl ObjectSubclass for NdiAudioSrc {
                 &settings.stream_name.clone(),
             );
 
-            Ok(())
+            match settings.id_receiver {
+                0 => Err(gst_error_msg!(
+                gst::ResourceError::Settings,
+                ["Could not connect to this source"]
+            )),
+                _ => Ok(())
+            }
         }
 
         fn stop(&self, element: &gst_base::BaseSrc) -> Result<(), gst::ErrorMessage> {
diff --git a/src/ndivideosrc.rs b/src/ndivideosrc.rs
index 19b7f6a9b..a99eb67b4 100644
--- a/src/ndivideosrc.rs
+++ b/src/ndivideosrc.rs
@@ -317,7 +317,13 @@ impl ObjectSubclass for NdiVideoSrc {
             );
 
             // settings.id_receiver != 0
-            Ok(())
+            match settings.id_receiver {
+                0 => Err(gst_error_msg!(
+                gst::ResourceError::Settings,
+                ["Could not connect to this source"]
+            )),
+                _ => Ok(())
+            }
         }
 
         fn stop(&self, element: &gst_base::BaseSrc) -> Result<(), gst::ErrorMessage> {