diff --git a/src/testdir/test_eval_stuff.vim b/src/testdir/test_eval_stuff.vim
index 4e8b782..ec566da 100644
--- a/src/testdir/test_eval_stuff.vim
+++ b/src/testdir/test_eval_stuff.vim
@@ -200,6 +200,9 @@
   call assert_equal(64, 0b1'00'00'00)
   call assert_equal(1048576, 0x10'00'00)
   call assert_equal(1000000, 1'000'000)
+  call assert_equal("1234", execute("echo 1'234")->trim())
+  call assert_equal('1  234', execute("echo 1''234")->trim())
+  call assert_fails("echo 1'''234", 'E115:')
 endfunc
 
 scriptversion 1
diff --git a/src/testdir/test_functions.vim b/src/testdir/test_functions.vim
index e782061..37aba38 100644
--- a/src/testdir/test_functions.vim
+++ b/src/testdir/test_functions.vim
@@ -161,6 +161,7 @@
   call assert_equal(256, str2nr("1'0000'0000", 2, 1))
   call assert_equal(262144, str2nr("1'000'000", 8, 1))
   call assert_equal(1000000, str2nr("1'000'000", 10, 1))
+  call assert_equal(1000, str2nr("1'000''000", 10, 1))
   call assert_equal(65536, str2nr("1'00'00", 16, 1))
 
   call assert_equal(0, str2nr('0x10'))
diff --git a/src/version.c b/src/version.c
index e9a71a8..919d8fd 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2043,
+/**/
     2042,
 /**/
     2041,