diff --git a/device_mapper/libdm-targets.c b/device_mapper/libdm-targets.c
index d8a247c13..dfc26461d 100644
--- a/device_mapper/libdm-targets.c
+++ b/device_mapper/libdm-targets.c
@@ -538,7 +538,7 @@ static dm_status_mirror_health_t _get_health(char c)
 	case 'R': return DM_STATUS_MIRROR_READ_FAILED;
 	default:
 		log_warn("WARNING: Unknown mirror health status char: %c", c);
-		/* fallback */
+		/* fall through */
 	case 'U': return DM_STATUS_MIRROR_UNCLASSIFIED;
 	}
 }
diff --git a/libdm/libdm-targets.c b/libdm/libdm-targets.c
index 9eb11c700..ea1ba1d12 100644
--- a/libdm/libdm-targets.c
+++ b/libdm/libdm-targets.c
@@ -479,7 +479,7 @@ static dm_status_mirror_health_t _get_health(char c)
 	case 'R': return DM_STATUS_MIRROR_READ_FAILED;
 	default:
 		log_warn("WARNING: Unknown mirror health status char: %c", c);
-		/* fallback */
+		/* fall through */
 	case 'U': return DM_STATUS_MIRROR_UNCLASSIFIED;
 	}
 }