diff --git a/lib/generate_functions.py b/lib/generate_functions.py
index 0cee1c1..4e38f16 100755
--- a/lib/generate_functions.py
+++ b/lib/generate_functions.py
@@ -300,6 +300,7 @@ def parse_header(header_name: str, output_file: str, ext_file: str, prefix: str,
                 ("rlLoadShaderBuffer", "data"),
                 ("rlLoadShaderCode", "vsCode"),
                 ("rlLoadShaderCode", "fsCode"),
+                ("GuiTextInputBox", "secretViewActive")
             ]
 
             zig_type = ziggify_type(arg_name, arg_type, func_name)
diff --git a/lib/raygui.zig b/lib/raygui.zig
index e5590a3..c80ff97 100644
--- a/lib/raygui.zig
+++ b/lib/raygui.zig
@@ -710,7 +710,7 @@ pub fn guiMessageBox(bounds: Rectangle, title: [:0]const u8, message: [:0]const
 }
 
 /// Text Input Box control, ask for text, supports secret
-pub fn guiTextInputBox(bounds: Rectangle, title: [:0]const u8, message: [:0]const u8, buttons: [:0]const u8, text: [:0]u8, textMaxSize: i32, secretViewActive: *bool) i32 {
+pub fn guiTextInputBox(bounds: Rectangle, title: [:0]const u8, message: [:0]const u8, buttons: [:0]const u8, text: [:0]u8, textMaxSize: i32, secretViewActive: ?*bool) i32 {
     return @as(i32, cdef.GuiTextInputBox(bounds, @as([*c]const u8, @ptrCast(title)), @as([*c]const u8, @ptrCast(message)), @as([*c]const u8, @ptrCast(buttons)), @as([*c]u8, @ptrCast(text)), @as(c_int, textMaxSize), @as([*c]bool, @ptrCast(secretViewActive))));
 }