diff --git a/collect_app/src/main/java/org/odk/collect/android/instancemanagement/send/InstanceUploaderActivity.java b/collect_app/src/main/java/org/odk/collect/android/instancemanagement/send/InstanceUploaderActivity.java
index efdf305c2c1..71d3699bf19 100644
--- a/collect_app/src/main/java/org/odk/collect/android/instancemanagement/send/InstanceUploaderActivity.java
+++ b/collect_app/src/main/java/org/odk/collect/android/instancemanagement/send/InstanceUploaderActivity.java
@@ -20,6 +20,7 @@
 import android.app.ProgressDialog;
 import android.content.DialogInterface;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 
 import org.odk.collect.android.activities.FormFillingActivity;
@@ -177,7 +178,7 @@ private void init(Bundle savedInstanceState) {
             instanceUploaderTask = new InstanceUploaderTask();
 
             if (url != null) {
-                instanceUploaderTask.setCompleteDestinationUrl(url + OpenRosaConstants.SUBMISSION);
+                instanceUploaderTask.setCompleteDestinationUrl(url + OpenRosaConstants.SUBMISSION, getReferrerUri(), true);
 
                 if (deleteInstanceAfterUpload != null) {
                     instanceUploaderTask.setDeleteInstanceAfterSubmission(deleteInstanceAfterUpload);
@@ -376,7 +377,7 @@ public void updatedCredentials() {
         // TODO: is this really needed here? When would the task not have gotten a server set in
         // init already?
         if (url != null) {
-            instanceUploaderTask.setCompleteDestinationUrl(url + OpenRosaConstants.SUBMISSION, false);
+            instanceUploaderTask.setCompleteDestinationUrl(url + OpenRosaConstants.SUBMISSION, getReferrerUri(), false);
         }
         instanceUploaderTask.setRepositories(instancesRepository, formsRepository, settingsProvider);
         instanceUploaderTask.execute(instancesToSend);
@@ -386,4 +387,14 @@ public void updatedCredentials() {
     public void cancelledUpdatingCredentials() {
         finish();
     }
+
+    private String getReferrerUri() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {
+            Uri referrerUri = getReferrer();
+            if (referrerUri != null) {
+                return referrerUri.toString();
+            }
+        }
+        return "unknown";
+    }
 }
diff --git a/collect_app/src/main/java/org/odk/collect/android/tasks/InstanceUploaderTask.java b/collect_app/src/main/java/org/odk/collect/android/tasks/InstanceUploaderTask.java
index d997a412f0a..b788d041e25 100644
--- a/collect_app/src/main/java/org/odk/collect/android/tasks/InstanceUploaderTask.java
+++ b/collect_app/src/main/java/org/odk/collect/android/tasks/InstanceUploaderTask.java
@@ -74,6 +74,7 @@ public class InstanceUploaderTask extends AsyncTask<Long, Integer, InstanceUploa
     // Custom submission URL, username and password that can be sent via intent extras by external
     // applications
     private String completeDestinationUrl;
+    private String referrer;
     private String customUsername;
     private String customPassword;
     private InstancesRepository instancesRepository;
@@ -108,7 +109,7 @@ public Outcome doInBackground(Long... instanceIdsToUpload) {
             publishProgress(i + 1, instancesToUpload.size());
 
             if (completeDestinationUrl != null) {
-                Analytics.log(AnalyticsEvents.INSTANCE_UPLOAD_CUSTOM_SERVER);
+                Analytics.log(AnalyticsEvents.INSTANCE_UPLOAD_CUSTOM_SERVER, "label", referrer != null ? referrer : "");
             }
 
             try {
@@ -202,12 +203,9 @@ public void setRepositories(InstancesRepository instancesRepository, FormsReposi
         this.settingsProvider = settingsProvider;
     }
 
-    public void setCompleteDestinationUrl(String completeDestinationUrl) {
-        setCompleteDestinationUrl(completeDestinationUrl, true);
-    }
-
-    public void setCompleteDestinationUrl(String completeDestinationUrl, boolean clearPreviousConfig) {
+    public void setCompleteDestinationUrl(String completeDestinationUrl, String referrer, boolean clearPreviousConfig) {
         this.completeDestinationUrl = completeDestinationUrl;
+        this.referrer = referrer;
         if (clearPreviousConfig) {
             setTemporaryCredentials();
         }