diff --git a/src/evalfunc.c b/src/evalfunc.c
index 53783af..f665842 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -5205,6 +5205,7 @@
 #ifdef FEAT_KEYMAP
 	"keymap",
 #endif
+	"lambda", /* always with FEAT_EVAL, since 7.4.2120 with closure */
 #ifdef FEAT_LANGMAP
 	"langmap",
 #endif
diff --git a/src/testdir/test_lambda.vim b/src/testdir/test_lambda.vim
index 9eb34e4..5118738 100644
--- a/src/testdir/test_lambda.vim
+++ b/src/testdir/test_lambda.vim
@@ -1,5 +1,9 @@
 " Test for lambda and closure
 
+function! Test_lambda_feature()
+  call assert_equal(1, has('lambda'))
+endfunction
+
 function! Test_lambda_with_filter()
   let s:x = 2
   call assert_equal([2, 3], filter([1, 2, 3], {i, v -> v >= s:x}))
diff --git a/src/version.c b/src/version.c
index 7e8ca16..4af1468 100644
--- a/src/version.c
+++ b/src/version.c
@@ -304,6 +304,11 @@
 #else
 	"-keymap",
 #endif
+#ifdef FEAT_EVAL
+	"+lambda",
+#else
+	"-lambda",
+#endif
 #ifdef FEAT_LANGMAP
 	"+langmap",
 #else
@@ -759,6 +764,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2121,
+/**/
     2120,
 /**/
     2119,