diff --git a/src/evalfunc.c b/src/evalfunc.c
index a470ff9..70b90ad 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -58,6 +58,9 @@
 static void f_atan(typval_T *argvars, typval_T *rettv);
 static void f_atan2(typval_T *argvars, typval_T *rettv);
 #endif
+#ifdef FEAT_BEVAL
+static void f_balloon_show(typval_T *argvars, typval_T *rettv);
+#endif
 static void f_browse(typval_T *argvars, typval_T *rettv);
 static void f_browsedir(typval_T *argvars, typval_T *rettv);
 static void f_bufexists(typval_T *argvars, typval_T *rettv);
@@ -484,6 +487,9 @@
     {"atan",		1, 1, f_atan},
     {"atan2",		2, 2, f_atan2},
 #endif
+#ifdef FEAT_BEVAL
+    {"balloon_show",	1, 1, f_balloon_show},
+#endif
     {"browse",		4, 4, f_browse},
     {"browsedir",	2, 2, f_browsedir},
     {"bufexists",	1, 1, f_bufexists},
@@ -1363,6 +1369,17 @@
 #endif
 
 /*
+ * "balloon_show()" function
+ */
+#ifdef FEAT_BEVAL
+    static void
+f_balloon_show(typval_T *argvars, typval_T *rettv UNUSED)
+{
+    gui_mch_post_balloon(balloonEval, get_tv_string_chk(&argvars[0]));
+}
+#endif
+
+/*
  * "browse(save, title, initdir, default)" function
  */
     static void