diff --git a/src/main.zig b/src/main.zig
index 6e7a6526..a1dd2a67 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -52,7 +52,7 @@ pub fn main() !void {
     const alloc = if (builtin.mode == .Debug) gpa.allocator() else std.heap.c_allocator;
 
     defer if (builtin.mode == .Debug) {
-        _ = gpa.detectLeaks();
+        if (gpa.detectLeaks()) std.posix.exit(1);
     };
 
     var args_arena = std.heap.ArenaAllocator.init(alloc);