diff --git a/probe/appclient/app_client_internal_test.go b/probe/appclient/app_client_internal_test.go
index e2a260d2c..4eded3adf 100644
--- a/probe/appclient/app_client_internal_test.go
+++ b/probe/appclient/app_client_internal_test.go
@@ -29,7 +29,11 @@ func dummyServer(t *testing.T, expectedToken, expectedID string, expectedVersion
 		}
 
 		if have := r.Header.Get(xfer.ScopeProbeVersionHeader); expectedVersion != have {
-			t.Errorf("want %q, have %q", expectedID, have)
+			t.Errorf("want %q, have %q", expectedVersion, have)
+		}
+
+		if have := r.Header.Get("user-agent"); "Scope_Probe/"+expectedVersion!=have {
+			t.Errorf("want %q, have %q","Scope_Probe/"+expectedVersion,have)
 		}
 
 		var have report.Report
diff --git a/probe/appclient/probe_config.go b/probe/appclient/probe_config.go
index 8e2cecd58..7a170f763 100644
--- a/probe/appclient/probe_config.go
+++ b/probe/appclient/probe_config.go
@@ -46,6 +46,9 @@ func (pc ProbeConfig) authorizeHeaders(headers http.Header) {
 	}
 	headers.Set(xfer.ScopeProbeIDHeader, pc.ProbeID)
 	headers.Set(xfer.ScopeProbeVersionHeader, pc.ProbeVersion)
+	headers.Set("user-agent","Scope_Probe/"+pc.ProbeVersion )
+
+
 }
 
 func (pc ProbeConfig) authorizedRequest(method string, urlStr string, body io.Reader) (*http.Request, error) {