diff --git a/custom_config.ini.example b/custom_config.ini.example
index 6acc3d03..49baa4b3 100644
--- a/custom_config.ini.example
+++ b/custom_config.ini.example
@@ -36,3 +36,7 @@
 
 ; Verbose
 ;build_flags = -DCORE_DEBUG_LEVEL=5
+
+;;;; Enable insecure (HTTP) networking ;;;;
+
+;build_flags = -DHTTP_INSECURE
diff --git a/src/uploader.cpp b/src/uploader.cpp
index b6e67910..6a926c21 100644
--- a/src/uploader.cpp
+++ b/src/uploader.cpp
@@ -27,6 +27,7 @@
 static char const *const HTTP_LOCATION_HEADER = "location";
 
 // Telekom rootCA certificate
+#ifndef HTTP_INSECURE
 static const char *const rootCACertificate =
   "-----BEGIN CERTIFICATE-----\n"
   "MIIDwzCCAqugAwIBAgIBATANBgkqhkiG9w0BAQsFADCBgjELMAkGA1UEBhMCREUx\n"
@@ -51,12 +52,16 @@ static const char *const rootCACertificate =
   "9noHV8cigwUtPJslJj0Ys6lDfMjIq2SPDqO/nBudMNva0Bkuqjzx+zOAduTNrRlP\n"
   "BSeOE6Fuwg==\n"
   "-----END CERTIFICATE-----\n";
+#endif
 
 Uploader::Uploader(String portalUrl, String userToken) :
     mPortalUrl(std::move(portalUrl)),
     mPortalUserToken(std::move(userToken)) {
   ObsUtils::setClockByNtpAndWait();
+
+#ifndef HTTP_INSECURE
   mWiFiClient.setCACert(rootCACertificate);
+#endif
 }
 
 /* Upload file as track data to "The Portal" as multipart form data.
diff --git a/src/uploader.h b/src/uploader.h
index d6cc0ae9..b6fd3fc0 100644
--- a/src/uploader.h
+++ b/src/uploader.h
@@ -2,7 +2,11 @@
 #define UPLOADER_H
 
 #include <Arduino.h>
+#ifdef HTTP_INSECURE
+#include <WiFiClient.h>
+#else
 #include <WiFiClientSecure.h>
+#endif
 #include <FS.h>
 
 class Uploader {
@@ -18,7 +22,11 @@ class Uploader {
   private:
     const String mPortalUrl;
     const String mPortalUserToken;
+#ifdef HTTP_INSECURE
+    WiFiClient mWiFiClient;
+#else
     WiFiClientSecure mWiFiClient;
+#endif
     String mLastLocation = "";
     String mLastStatusMessage = "NO UPLOAD";