diff --git a/platformio.ini b/platformio.ini
index c90e9c7c..4b91317d 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -75,7 +75,7 @@ lib_deps =
   https://github.com/meshtastic/AXP202X_Library.git#8404abb6d4b486748636bc6ad72d2a47baaf5460
   Wire ; explicitly needed here because the AXP202 library forgets to add it
   SPI
-  https://github.com/geeksville/ArduinoThread.git#333ffd09b596977c217ba25da4258f588b462ac6
+  https://github.com/geeksville/ArduinoThread.git#72921ac222eed6f526ba1682023cee290d9aa1b3
   
 ; Common settings for conventional (non Portduino) Ardino targets
 [arduino_base]
diff --git a/src/concurrency/OSThread.cpp b/src/concurrency/OSThread.cpp
index 5e20debf..4bde72b0 100644
--- a/src/concurrency/OSThread.cpp
+++ b/src/concurrency/OSThread.cpp
@@ -32,8 +32,10 @@ OSThread::OSThread(const char *_name, uint32_t period, ThreadController *_contro
 
     ThreadName = _name;
 
-    if (controller)
-        controller->add(this);
+    if (controller) {
+        bool added = controller->add(this);
+        assert(added);
+    }
 }
 
 OSThread::~OSThread()