diff --git a/compress_fragment.go b/compress_fragment.go
index 435898e..2fc2df1 100644
--- a/compress_fragment.go
+++ b/compress_fragment.go
@@ -33,14 +33,8 @@ func hashBytesAtOffset5(v uint64, offset int, shift uint) uint32 {
 }
 
 func isMatch5(p1 []byte, p2 []byte) bool {
-	var i int
-	for i = 0; i < 5; i++ {
-		if p1[i] != p2[i] {
-			return false
-		}
-	}
-
-	return true
+	return binary.LittleEndian.Uint32(p1) == binary.LittleEndian.Uint32(p2) &&
+		p1[4] == p2[4]
 }
 
 /* Builds a literal prefix code into "depths" and "bits" based on the statistics
diff --git a/compress_fragment_two_pass.go b/compress_fragment_two_pass.go
index ffeb321..172dc7f 100644
--- a/compress_fragment_two_pass.go
+++ b/compress_fragment_two_pass.go
@@ -30,14 +30,13 @@ func hashBytesAtOffset(v uint64, offset uint, shift uint, length uint) uint32 {
 }
 
 func isMatch1(p1 []byte, p2 []byte, length uint) bool {
-	var i uint
-	for i = 0; i < length && i < 6; i++ {
-		if p1[i] != p2[i] {
-			return false
-		}
+	if binary.LittleEndian.Uint32(p1) != binary.LittleEndian.Uint32(p2) {
+		return false
 	}
-
-	return true
+	if length == 4 {
+		return true
+	}
+	return p1[4] == p2[4] && p1[5] == p2[5]
 }
 
 /* Builds a command and distance prefix code (each 64 symbols) into "depth" and