diff --git a/src/drawscreen.c b/src/drawscreen.c
index ed89271..2c184bd 100644
--- a/src/drawscreen.c
+++ b/src/drawscreen.c
@@ -1474,9 +1474,6 @@
 #if defined(FEAT_SYN_HL) || defined(FEAT_SEARCH_EXTRA)
     int		save_got_int;
 #endif
-#ifdef SYN_TIME_LIMIT
-    proftime_T	syntax_tm;
-#endif
 
 #if defined(FEAT_SEARCH_EXTRA) || defined(FEAT_CLIPBOARD)
     // This needs to be done only for the first window when update_screen() is
@@ -2182,8 +2179,7 @@
 #endif
 #ifdef SYN_TIME_LIMIT
     // Set the time limit to 'redrawtime'.
-    profile_setlimit(p_rdt, &syntax_tm);
-    syn_set_timeout(&syntax_tm);
+    init_regexp_timeout(p_rdt);
 #endif
 #ifdef FEAT_FOLDING
     win_foldinfo.fi_level = 0;
@@ -2695,7 +2691,7 @@
     }
 
 #ifdef SYN_TIME_LIMIT
-    syn_set_timeout(NULL);
+    disable_regexp_timeout();
 #endif
 
     // Reset the type of redrawing required, the window has been updated.