diff --git a/src/evalfunc.c b/src/evalfunc.c
index 6721173..08be12b 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -471,7 +471,7 @@
     {"assert_exception", 1, 2, f_assert_exception},
     {"assert_fails",	1, 2, f_assert_fails},
     {"assert_false",	1, 2, f_assert_false},
-    {"assert_inrange",	2, 3, f_assert_inrange},
+    {"assert_inrange",	3, 4, f_assert_inrange},
     {"assert_match",	2, 3, f_assert_match},
     {"assert_notequal",	2, 3, f_assert_notequal},
     {"assert_notmatch",	2, 3, f_assert_notmatch},