diff --git a/patches/fmc-adc-100m14b4cha-sw.diff b/patches/fmc-adc-100m14b4cha-sw.diff
index 00d1d494bc046645d38d29012e8fa5917423d07f..40dea99b0d7eb543424577b957cbc0e6c4c22eca 100644
--- a/patches/fmc-adc-100m14b4cha-sw.diff
+++ b/patches/fmc-adc-100m14b4cha-sw.diff
@@ -6,7 +6,7 @@ index a3a288d..69f545e 100644
  		return 0;
  	case ZFA_SW_CH1_OFFSET_ZERO:
  		i--;
-+		__attribute__((fallthrough));
++		/*fallthrough*/
  	case ZFA_SW_CH2_OFFSET_ZERO:
  		i--;
 +		/*fallthrough*/