diff --git a/woordklok.go b/woordklok.go
index 2ab3868..15d2c9d 100644
--- a/woordklok.go
+++ b/woordklok.go
@@ -8,6 +8,10 @@ import (
 	"time"
 )
 
+const ANSI_RED = "\u001b[31m"
+const ANSI_GREEN = "\u001b[32m"
+const ANSI_RESET = "\u001b[0m"
+
 // Replace occurences of repl with their uppercase in str
 func replace(str string, repl []string, prefix string, suffix string) string {
 	ret := str
@@ -72,15 +76,22 @@ func woordklok(tsp time.Time, color bool) string {
 	}
 	hour := hours[hh] + " uur"
 
+	ret := ""
+
 	// and replace the matching text with the uppercase
 	prefix := ""
 	suffix := ""
 	if color {
 		// Add color definitions
-		prefix = "\u001b[32m" // ANSI green
-		suffix = "\u001b[0m"  // ANSI reset
+		prefix = ANSI_GREEN
+		suffix = ANSI_RED
+		ret = ANSI_RED
 	}
-	return fmt.Sprintf("%s%s", replace(klok1, strings.Split(m, " "), prefix, suffix), replace(klok2, strings.Split(hour, " "), prefix, suffix))
+	ret += fmt.Sprintf("%s%s", replace(klok1, strings.Split(m, " "), prefix, suffix), replace(klok2, strings.Split(hour, " "), prefix, suffix))
+	if color {
+		ret += ANSI_RESET
+	}
+	return ret
 }
 
 func IsTTY() bool {
@@ -96,7 +107,6 @@ func main() {
 	batch := flag.Bool("b", false, "Batch mode (no colors)")
 	flag.Parse()
 
-	// Determine color mode
 	colors := *color
 	if !colors {
 		colors = IsTTY()