diff --git a/filesystem/squashfs/xattr.go b/filesystem/squashfs/xattr.go
index f63d4029..e1894217 100644
--- a/filesystem/squashfs/xattr.go
+++ b/filesystem/squashfs/xattr.go
@@ -45,7 +45,7 @@ func (x *xAttrTable) find(pos int) (map[string]string, error) {
 	xattrs := map[string]string{}
 	for i := 0; i < int(count); i++ {
 		// must be 4 bytes for header
-		if len(b[pos:]) < 4 {
+		if len(b[ptr:]) < 4 {
 			return nil, fmt.Errorf("insufficient bytes %d to read the xattr at position %d", len(b[ptr:]), ptr)
 		}
 		// get the type and size
@@ -56,7 +56,7 @@ func (x *xAttrTable) find(pos int) (map[string]string, error) {
 		valStart := valHeaderStart + 4
 		// make sure we have enough bytes
 		if len(b[nameStart:]) < xSize {
-			return nil, fmt.Errorf("xattr header has size %d, but only %d bytes available to read at position %d", xSize, len(b[pos+4:]), ptr)
+			return nil, fmt.Errorf("xattr header has size %d, but only %d bytes available to read at position %d", xSize, len(b[ptr+4:]), ptr)
 		}
 		if xSize < 1 {
 			return nil, fmt.Errorf("no name given for xattr at position %d", ptr)