diff --git a/peripherals/cc48x6/firmware/Src/main.c b/peripherals/cc48x6/firmware/Src/main.c
index bde891a..da17ff0 100644
--- a/peripherals/cc48x6/firmware/Src/main.c
+++ b/peripherals/cc48x6/firmware/Src/main.c
@@ -65,7 +65,7 @@ const uint16_t version = 42;
 bool toggle = false;
 uint16_t counter = 0;
 
-bool dirty = true;
+volatile bool dirty = true;
 //uint16_t mem[12] = {0xFFF, 0xFF, 0xFFF, 0xFF, 0xFFF, 0xFF, 0xFFF, 0xFF, 0xFFF, 0xFF, 0xFFF, 0xFF};
 //uint16_t mem[12] = {0x300, 0x40, 0x300, 0x40, 0x300, 0x40, 0x300, 0x40, 0x300, 0x40, 0x300, 0x40};
 uint16_t mem[12] = {0xFFF, 0xFF, 0xFFF, 0xFF, 0xFFF, 0xFF, 0xFFF, 0xFF, 0xFFF, 0xFF, 0xFFF, 0xFF};