diff --git a/src/evalfunc.c b/src/evalfunc.c
index 62938c1..b154840 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -431,7 +431,7 @@
 #endif
     {"assert_beeps",	1, 2, FEARG_1,	  f_assert_beeps},
     {"assert_equal",	2, 3, FEARG_2,	  f_assert_equal},
-    {"assert_equalfile", 2, 2, 0,	  f_assert_equalfile},
+    {"assert_equalfile", 2, 2, FEARG_1,	  f_assert_equalfile},
     {"assert_exception", 1, 2, 0,	  f_assert_exception},
     {"assert_fails",	1, 3, FEARG_1,	  f_assert_fails},
     {"assert_false",	1, 2, FEARG_1,	  f_assert_false},
@@ -439,7 +439,7 @@
     {"assert_match",	2, 3, FEARG_2,	  f_assert_match},
     {"assert_notequal",	2, 3, FEARG_2,	  f_assert_notequal},
     {"assert_notmatch",	2, 3, FEARG_2,	  f_assert_notmatch},
-    {"assert_report",	1, 1, 0,	  f_assert_report},
+    {"assert_report",	1, 1, FEARG_1,	  f_assert_report},
     {"assert_true",	1, 2, FEARG_1,	  f_assert_true},
 #ifdef FEAT_FLOAT
     {"atan",		1, 1, FEARG_1,	  f_atan},
@@ -464,8 +464,8 @@
     {"bufloaded",	1, 1, FEARG_1,	  f_bufloaded},
     {"bufname",		1, 1, FEARG_1,	  f_bufname},
     {"bufnr",		1, 2, FEARG_1,	  f_bufnr},
-    {"bufwinid",	1, 1, 0,	  f_bufwinid},
-    {"bufwinnr",	1, 1, 0,	  f_bufwinnr},
+    {"bufwinid",	1, 1, FEARG_1,	  f_bufwinid},
+    {"bufwinnr",	1, 1, FEARG_1,	  f_bufwinnr},
     {"byte2line",	1, 1, 0,	  f_byte2line},
     {"byteidx",		2, 2, 0,	  f_byteidx},
     {"byteidxcomp",	2, 2, 0,	  f_byteidxcomp},
@@ -963,7 +963,7 @@
     {"win_id2tabwin",	1, 1, 0,	  f_win_id2tabwin},
     {"win_id2win",	1, 1, 0,	  f_win_id2win},
     {"win_screenpos",	1, 1, 0,	  f_win_screenpos},
-    {"winbufnr",	1, 1, 0,	  f_winbufnr},
+    {"winbufnr",	1, 1, FEARG_1,	  f_winbufnr},
     {"wincol",		0, 0, 0,	  f_wincol},
     {"winheight",	1, 1, 0,	  f_winheight},
     {"winlayout",	0, 1, 0,	  f_winlayout},