diff --git a/SliceTricks.md b/SliceTricks.md
index 20cc0331..78dea5fc 100644
--- a/SliceTricks.md
+++ b/SliceTricks.md
@@ -234,15 +234,15 @@ result := in[:j+1]
 fmt.Println(result) // [1 2 3 4]
 ```
 
-### Move to front, or append if not present, in place
+### Move to front, or prepend if not present, in place if possible.
 
 ```go
 // moveToFront moves needle to the front of haystack, in place if possible.
 func moveToFront(needle string, haystack []string) []string {
-	if len(haystack) == 0 || haystack[0] == needle {
+	if len(haystack) != 0 && haystack[0] == needle {
 		return haystack
 	}
-	var prev string
+	prev := needle
 	for i, elem := range haystack {
 		switch {
 		case i == 0: