diff --git a/bin/build-all.sh b/bin/build-all.sh
index ecb96e7a1..c4d48b122 100755
--- a/bin/build-all.sh
+++ b/bin/build-all.sh
@@ -21,7 +21,7 @@ ARCHIVEDIR=release/archive
 
 rm -f $OUTDIR/firmware*
 
-mkdir -p $OUTDIR/bins
+mkdir -p $OUTDIR/bins $ARCHIVEDIR
 rm -r $OUTDIR/bins/*
 mkdir -p $OUTDIR/bins/universal $OUTDIR/elfs/universal
 
diff --git a/platformio.ini b/platformio.ini
index c90e9c7c5..4b91317d9 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 5e20debf9..4bde72b07 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()
diff --git a/version.properties b/version.properties
index 30f4b34dd..6c1503acd 100644
--- a/version.properties
+++ b/version.properties
@@ -1,4 +1,4 @@
 [VERSION]  
 major = 1  
 minor = 1
-build = 47
+build = 48