diff --git a/src/insexpand.c b/src/insexpand.c
index bb280fa..5f5a5b9 100644
--- a/src/insexpand.c
+++ b/src/insexpand.c
@@ -3665,7 +3665,15 @@
 
 	while (*p != NUL)
 	{
-	    int len = copy_option_part(&p, part, MAXPATHL, ",");
+	    int	    len = 0;
+	    if (*p == ',' && *(p+1) == ' ' && (*(p+2) == ',' || *(p+2) == NUL))
+	    {
+		part[0] = ' ';
+		len = 1;
+		p++;
+	    }
+	    else
+		len = copy_option_part(&p, part, MAXPATHL, ",");
 
 	    if (len > 0 && len <= col)
 	    {
diff --git a/src/testdir/test_ins_complete.vim b/src/testdir/test_ins_complete.vim
index f7292ea..741cc9d 100644
--- a/src/testdir/test_ins_complete.vim
+++ b/src/testdir/test_ins_complete.vim
@@ -4504,6 +4504,10 @@
   call feedkeys("Sabc, \<ESC>:let g:result=complete_match()\<CR>", 'tx')
   call assert_equal([[4, ',']], g:result)
 
+  set ise=\ ,=
+  call feedkeys("Sif true  \<ESC>:let g:result=complete_match()\<CR>", 'tx')
+  call assert_equal([[8, ' ']], g:result)
+
   bw!
   unlet g:result
   set isexpand&
diff --git a/src/version.c b/src/version.c
index 816ce5c..4a9ad83 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1383,
+/**/
     1382,
 /**/
     1381,