diff --git a/src/main.zig b/src/main.zig
index 4108ff8..4b83a2b 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -11,7 +11,7 @@ const sys = @import("./sys.zig");
 /// Entry point.
 ///
 pub fn main() anyerror!void {
-    return sys.runGraphics(anyerror, run);
+    return nosuspend sys.runGraphics(anyerror, run);
 }
 
 test {
diff --git a/src/sys.zig b/src/sys.zig
index ff5755f..7864d70 100644
--- a/src/sys.zig
+++ b/src/sys.zig
@@ -616,13 +616,13 @@ pub const GraphicsContext = opaque {
 ///
 ///
 pub fn GraphicsRunner(comptime Errors: type) type {
-    return fn (*EventLoop, *GraphicsContext) Errors!void;
+    return fn (*EventLoop, *GraphicsContext) callconv(.Async) Errors!void;
 }
 
 ///
 ///
 ///
-pub fn runGraphics(comptime Errors: anytype, run: GraphicsRunner(Errors)) Errors!void {
+pub fn runGraphics(comptime Errors: anytype, comptime run: GraphicsRunner(Errors)) Errors!void {
     if (ext.SDL_Init(ext.SDL_INIT_EVERYTHING) != 0) {
         ext.SDL_LogCritical(ext.SDL_LOG_CATEGORY_APPLICATION, "Failed to initialize runtime");