1 files changed, 1 insertions, 1 deletions
diff --git a/src/drivers/SpiMaster.h b/src/drivers/SpiMaster.h
index 5045369..5ea624f 100644
--- a/src/drivers/SpiMaster.h
+++ b/src/drivers/SpiMaster.h
@@ -59,7 +59,7 @@ namespace Pinetime {
       volatile uint32_t currentBufferAddr = 0;
       volatile size_t currentBufferSize = 0;
       volatile TaskHandle_t taskToNotify;
-      SemaphoreHandle_t mutex;
+      SemaphoreHandle_t mutex = nullptr;
     };
   }
 }