diff --git a/os/hal/platforms/AVR/pal_lld.c b/os/hal/platforms/AVR/pal_lld.c
index 19827459a..98d3e9b45 100644
--- a/os/hal/platforms/AVR/pal_lld.c
+++ b/os/hal/platforms/AVR/pal_lld.c
@@ -136,6 +136,7 @@ void _pal_lld_setgroupmode(ioportid_t port,
   case PAL_MODE_INPUT_PULLUP:
     port->dir &= ~mask;
     port->out |= mask;
+    break;
   case PAL_MODE_OUTPUT_PUSHPULL:
     port->dir |= mask;
     break;
diff --git a/readme.txt b/readme.txt
index d2ea30afd..9f28de7bc 100644
--- a/readme.txt
+++ b/readme.txt
@@ -84,7 +84,7 @@
 - FIX: Fixed lwIP-related files missing from version 2.4.1 (bug 3533887).
 
 - FIX: Fixed wrong MCO1 divider in STM32F2/F4 HAL (bug 3531289).
-  
+- FIX: Fixed missing "break" in AVR PAL driver (bug 3530924).
 - FIX: Fixed timeout related race condition in STM32 I2C driver (bug 3530043).
 - FIX: Fixed wrong macro check in STM32 MAC driver (bug 3527179).
 - FIX: Fixed error in STM32L-Discovery board.h file (bug 3526918).