diff --git a/src/change.c b/src/change.c
index 8ba0a54..b7618c5 100644
--- a/src/change.c
+++ b/src/change.c
@@ -1392,14 +1392,7 @@
     int		do_cindent;
 #endif
 #ifdef FEAT_SMARTINDENT
-    int		do_si = (!p_paste && curbuf->b_p_si
-# ifdef FEAT_CINDENT
-					&& !curbuf->b_p_cin
-# endif
-# ifdef FEAT_EVAL
-					&& *curbuf->b_p_inde == NUL
-# endif
-			);
+    int		do_si = may_do_si();
     int		no_si = FALSE;		// reset did_si afterwards
     int		first_char = NUL;	// init for GCC
 #endif