diff --git a/asciigraph.go b/asciigraph.go
index 608eb6a..d018ed1 100644
--- a/asciigraph.go
+++ b/asciigraph.go
@@ -17,7 +17,7 @@ func PlotMany(data [][]float64, options ...Option) string {
 	var logMaximum float64
 	config := configure(config{
 		Offset:    3,
-		Precision: 2,
+		Precision: nil,
 	}, options)
 
 	// Create a deep copy of the input data
@@ -103,7 +103,11 @@ func PlotMany(data [][]float64, options ...Option) string {
 		plot[i] = line
 	}
 
-	precision := config.Precision
+	var precision uint = 2 //Default precision to maintain backwards compatibility
+	if config.Precision != nil {
+		precision = *config.Precision
+	}
+
 	logMaximum = math.Log10(math.Max(math.Abs(maximum), math.Abs(minimum))) //to find number of zeros after decimal
 	if minimum == float64(0) && maximum == float64(0) {
 		logMaximum = float64(-1)
@@ -117,7 +121,7 @@ func PlotMany(data [][]float64, options ...Option) string {
 		} else {
 			precision += uint(math.Abs(logMaximum) - 1.0)
 		}
-	} else if logMaximum > 2 {
+	} else if logMaximum > 2 && config.Precision == nil {
 		precision = 0
 	}
 
diff --git a/options.go b/options.go
index 17dd4d0..ae49ef1 100644
--- a/options.go
+++ b/options.go
@@ -15,7 +15,7 @@ type config struct {
 	LowerBound, UpperBound *float64
 	Offset                 int
 	Caption                string
-	Precision              uint
+	Precision              *uint
 	CaptionColor           AnsiColor
 	AxisColor              AnsiColor
 	LabelColor             AnsiColor
@@ -80,7 +80,7 @@ func Offset(o int) Option {
 
 // Precision sets the graphs precision.
 func Precision(p uint) Option {
-	return optionFunc(func(c *config) { c.Precision = p })
+	return optionFunc(func(c *config) { c.Precision = &p })
 }
 
 // Caption sets the graphs caption.