1 files changed, 4 insertions, 1 deletions
diff --git a/src/nvim/syntax.c b/src/nvim/syntax.c
index 575d475b87..ea78397d8c 100644
--- a/src/nvim/syntax.c
+++ b/src/nvim/syntax.c
@@ -1327,10 +1327,13 @@ static bool syn_stack_equal(synstate_T *sp)
 //          displayed line
 //          displayed line
 // lnum ->  line below window
-void syntax_end_parsing(linenr_T lnum)
+void syntax_end_parsing(win_T *wp, linenr_T lnum)
 {
   synstate_T *sp;
 
+  if (syn_block != wp->w_s) {
+    return;  // not the right window
+  }
   sp = syn_stack_find_entry(lnum);
   if (sp != NULL && sp->sst_lnum < lnum) {
     sp = sp->sst_next;