diff --git a/cmd/tools/vtest-cleancode.v b/cmd/tools/vtest-cleancode.v
index 94a8d3a8e4..41be40aa34 100644
--- a/cmd/tools/vtest-cleancode.v
+++ b/cmd/tools/vtest-cleancode.v
@@ -21,6 +21,7 @@ const (
 		'cmd/tools/vdoc.v'
 		'cmd/v/v.v',
 		'vlib/builtin/array.v',
+		'vlib/builtin/map.v',
 		'vlib/os/file.v',
 		'vlib/math/bits/bits.v',
 		'vlib/time/time.v',
diff --git a/vlib/builtin/map.v b/vlib/builtin/map.v
index 37a7abf5a7..54e3114dad 100644
--- a/vlib/builtin/map.v
+++ b/vlib/builtin/map.v
@@ -119,7 +119,7 @@ fn new_dense_array(key_bytes int, value_bytes int) DenseArray {
 		len: 0
 		deletes: 0
 		all_deleted: 0
-		data: malloc(cap * slot_bytes) 
+		data: malloc(cap * slot_bytes)
 	}
 }