diff --git a/.uncrustify.cfg b/.uncrustify.cfg
index 0ab34eb..41d4ab3 100755
--- a/.uncrustify.cfg
+++ b/.uncrustify.cfg
@@ -1,7 +1,7 @@
 # Uncrustify-0.66.1_f
 newlines                        = auto
-input_tab_size                  = 8
-output_tab_size                 = 8
+input_tab_size                  = 4
+output_tab_size                 = 4
 string_escape_char              = 92
 string_escape_char2             = 0
 string_replace_tab_chars        = false
@@ -200,7 +200,7 @@ sp_num_before_tr_emb_cmt        = 0
 sp_annotation_paren             = ignore
 sp_skip_vbrace_tokens           = false
 force_tab_after_define          = false
-indent_columns                  = 8
+indent_columns                  = 4
 indent_continue                 = 0
 indent_param                    = 0
 indent_with_tabs                = 1