diff --git a/radio/src/targets/simu/simulcd.cpp b/radio/src/targets/simu/simulcd.cpp
index 2c9b8fc9e..e4a526f5b 100644
--- a/radio/src/targets/simu/simulcd.cpp
+++ b/radio/src/targets/simu/simulcd.cpp
@@ -110,6 +110,10 @@ void lcdInit()
   lcdSetFlushCb(simuRefreshLcd);
 }
 
+void DMAWait()
+{
+}
+
 void DMAFillRect(uint16_t *dest, uint16_t destw, uint16_t desth, uint16_t x,
                  uint16_t y, uint16_t w, uint16_t h, uint16_t color)
 {