diff --git a/docker/log_iterator.go b/docker/log_iterator.go
index c05b6d16..9f3252a7 100644
--- a/docker/log_iterator.go
+++ b/docker/log_iterator.go
@@ -124,14 +124,15 @@ func (g *eventGenerator) consume() {
 	}
 }
 
-var NON_ASCII_REGEX = regexp.MustCompile("^[^a-zA-z ]+[^ewidtf]?")
 var KEY_VALUE_REGEX = regexp.MustCompile(`level=(\w+)`)
+var ANSI_COLOR_REGEX = regexp.MustCompile(`\x1b\[[0-9;]*m`)
 
 func guessLogLevel(logEvent *LogEvent) string {
 	switch value := logEvent.Message.(type) {
 	case string:
 		levels := []string{"error", "warn", "info", "debug", "trace", "fatal"}
-		stripped := NON_ASCII_REGEX.ReplaceAllString(value, "")
+		stripped := ANSI_COLOR_REGEX.ReplaceAllString(value, "") // remove ansi color codes
+		log.Debugf("colors stripped: %s", stripped)
 		for _, level := range levels {
 			if match, _ := regexp.MatchString("(?i)^"+level+"[^a-z]", stripped); match {
 				return level