diff --git a/src/if_ruby.c b/src/if_ruby.c
index 7f2a7d2..f4e1e12 100644
--- a/src/if_ruby.c
+++ b/src/if_ruby.c
@@ -21,7 +21,7 @@
 
 #ifdef _WIN32
 # if !defined(DYNAMIC_RUBY) || (RUBY_VERSION < 18)
-#   define NT
+#  define NT
 # endif
 # ifndef DYNAMIC_RUBY
 #  define IMPORT // For static dll usage __declspec(dllimport)
@@ -300,8 +300,8 @@
 #  define rb_float_new			dll_rb_float_new
 #  define rb_ary_new			dll_rb_ary_new
 #  ifdef rb_ary_new4
-#    define RB_ARY_NEW4_MACRO 1
-#    undef rb_ary_new4
+#   define RB_ARY_NEW4_MACRO 1
+#   undef rb_ary_new4
 #  endif
 #  define rb_ary_new4			dll_rb_ary_new4
 #  define rb_ary_push			dll_rb_ary_push
@@ -1071,15 +1071,15 @@
 	    }
 
 	    attr = syn_name2attr((char_u *)"Error");
-# if RUBY_VERSION >= 21
+#if RUBY_VERSION >= 21
 	    bt = rb_funcallv(error, rb_intern("backtrace"), 0, 0);
 	    for (i = 0; i < RARRAY_LEN(bt); i++)
 		msg_attr(RSTRING_PTR(RARRAY_AREF(bt, i)), attr);
-# else
+#else
 	    bt = rb_funcall2(error, rb_intern("backtrace"), 0, 0);
 	    for (i = 0; i < RARRAY_LEN(bt); i++)
 		msg_attr(RSTRING_PTR(RARRAY_PTR(bt)[i]), attr);
-# endif
+#endif
 	    break;
 	default:
 	    vim_snprintf(buff, BUFSIZ, _("E273: unknown longjmp status %d"), state);