diff --git a/src/box/lua/box.lua b/src/box/lua/box.lua
index c9de7c74857b3d0fc4b56a6540604611269534b0..30265e439ef0977be990bd744ea4b2cdae85b696 100644
--- a/src/box/lua/box.lua
+++ b/src/box/lua/box.lua
@@ -32,8 +32,7 @@ end
 -- starts from the key.
 --
 function box.select_range(sno, ino, limit, ...)
-    return box.net.self:select_range(tonumber(sno), tonumber(ino),
-        tonumber(limit), ...)
+    return box.net.self:select_range(sno, ino, limit, ...)
 end
 
 --
@@ -42,8 +41,7 @@ end
 -- starts from the key.
 --
 function box.select_reverse_range(sno, ino, limit, ...)
-    return box.net.self:select_reverse_range(tonumber(sno), tonumber(ino),
-        tonumber(limit), ...)
+    return box.net.self:select_reverse_range(sno, ino, limit, ...)
 end
 
 --