diff --git a/pkg/indicator/rsi.go b/pkg/indicator/rsi.go
index 0e8d3b5a6..426dc8309 100644
--- a/pkg/indicator/rsi.go
+++ b/pkg/indicator/rsi.go
@@ -37,8 +37,8 @@ func (inc *RSI) Update(kline types.KLine, priceF KLinePriceMapper) {
 	if len(inc.Prices) == inc.Window+1 {
 		diffValues := inc.Prices.Diff()
 
-		avgGain = diffValues.PositiveValues().AbsoluteValues().Sum() / float64(inc.Window)
-		avgLoss = diffValues.NegativeValues().AbsoluteValues().Sum() / float64(inc.Window)
+		avgGain = diffValues.PositiveValuesOrZero().AbsoluteValues().Sum() / float64(inc.Window)
+		avgLoss = diffValues.NegativeValuesOrZero().AbsoluteValues().Sum() / float64(inc.Window)
 	} else {
 		diff := price - inc.Prices[len(inc.Prices)-2]
 		currentGain := math.Max(diff, 0)
diff --git a/pkg/types/float_slice.go b/pkg/types/float_slice.go
index d82877235..8b11aabc6 100644
--- a/pkg/types/float_slice.go
+++ b/pkg/types/float_slice.go
@@ -66,7 +66,7 @@ func (s Float64Slice) Diff() Float64Slice {
 	return values
 }
 
-func (s Float64Slice) PositiveValues() Float64Slice {
+func (s Float64Slice) PositiveValuesOrZero() Float64Slice {
 	var values Float64Slice
 	for _, v := range s {
 		values.Push(math.Max(v, 0))
@@ -74,7 +74,7 @@ func (s Float64Slice) PositiveValues() Float64Slice {
 	return values
 }
 
-func (s Float64Slice) NegativeValues() Float64Slice {
+func (s Float64Slice) NegativeValuesOrZero() Float64Slice {
 	var values Float64Slice
 	for _, v := range s {
 		values.Push(math.Min(v, 0))