diff --git a/firmware/target/arm/i2c-telechips.c b/firmware/target/arm/i2c-telechips.c
index 9226617b14..35f4cd41c5 100644
--- a/firmware/target/arm/i2c-telechips.c
+++ b/firmware/target/arm/i2c-telechips.c
@@ -28,8 +28,10 @@
 static inline void delay_loop(void)
 {
     unsigned long x;
-    for (x = (unsigned)(FREQ>>22); x; x--);
+    for (x = (unsigned)(FREQ>>22); x; x--)
+        asm volatile("nop");
 }
+
 #define DELAY delay_loop()
 
 static struct mutex i2c_mtx;