diff --git a/csminer.go b/csminer.go
index b22d84b..ad95282 100644
--- a/csminer.go
+++ b/csminer.go
@@ -84,7 +84,7 @@ func MultiMain(s MachineStater, agent string) {
 			crylog.Fatal(INVALID_EXCLUDE_FORMAT_MESSAGE, err)
 			return
 		}
-		if hr1 > 24 || hr1 < 0 || hr2 > 24 || hr1 < 0 {
+		if hr1 > 24 || hr1 < 0 || hr2 > 24 || hr2 < 0 {
 			crylog.Fatal("INVALID_EXCLUDE_FORMAT_MESSAGE", ": XX and YY must each be between 0 and 24")
 			return
 		}
diff --git a/minerlib/minerlib.go b/minerlib/minerlib.go
index ebc7e45..ee7c024 100644
--- a/minerlib/minerlib.go
+++ b/minerlib/minerlib.go
@@ -267,7 +267,7 @@ func InitMiner(args *InitMinerArgs) *InitMinerResponse {
 	r := &InitMinerResponse{}
 	hr1 := args.ExcludeHourStart
 	hr2 := args.ExcludeHourEnd
-	if hr1 > 24 || hr1 < 0 || hr2 > 24 || hr1 < 0 {
+	if hr1 > 24 || hr1 < 0 || hr2 > 24 || hr2 < 0 {
 		r.Code = 3
 		r.Message = "exclude_hour_start and exclude_hour_end must each be between 0 and 24"
 		return r