diff --git a/src/main.zig b/src/main.zig
index 3a2f64c..8d69191 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -107,7 +107,7 @@ pub fn main() !void {
         var buf: [8]u8 = undefined;
         const timer_ms = timer.getTicks();
         // const timer_base = std.math.log10(timer_ms) + 3;
-        const time_str: []const u8 = try std.fmt.bufPrint(&buf, "{d}ms", .{timer_ms});
+        const time_str: [*:0]const u8 = try std.fmt.bufPrintZ(&buf, "{d}ms", .{timer_ms});
         var time_text = try GameText.loadFromRenderedText(time_str, RGBAColor.whiteSmoke().tosdl());
         try time_text.render(
             &game_state,
diff --git a/src/text.zig b/src/text.zig
index 29d0aa9..60b8714 100644
--- a/src/text.zig
+++ b/src/text.zig
@@ -9,15 +9,14 @@ var text_texture: ?*sdl.SDL_Texture = null;
 var text_init = false;
 
 pub const GameText = struct {
-    text: []const u8,
+    text: [*:0]const u8,
     color: sdl.SDL_Color,
     surface: *sdl.SDL_Surface,
     w: u32,
     h: u32,
 
-    pub fn loadFromRenderedText(text: []const u8, color: sdl.SDL_Color) !GameText {
-        const trunc_str = text[0..text.len];
-        const c_text: [*c]const u8 = @ptrCast(trunc_str);
+    pub fn loadFromRenderedText(text: [*:0]const u8, color: sdl.SDL_Color) !GameText {
+        const c_text: [*c]const u8 = @ptrCast(text);
         const text_surface: [*c]sdl.SDL_Surface = sdl.TTF_RenderText_Solid(font.?, c_text, color) orelse {
             sdl.SDL_Log("Error loading text surface: %s\n", sdl.SDL_GetError());
             return error.FailedToRenderSurface;