diff --git a/build.zig b/build.zig
index f621cf4e0..0f9168267 100644
--- a/build.zig
+++ b/build.zig
@@ -73,6 +73,7 @@ fn addLinkerFlags(
 ) !void {
     const webui_target = webui.rootModuleTarget();
     const is_windows = webui_target.os.tag == .windows;
+    const debug = webui.root_module.optimize.? == .Debug;
 
     const debug = webui.root_module.optimize.? == .Debug;
 
@@ -86,6 +87,9 @@ fn addLinkerFlags(
         "-Wno-error=date-time",
     };
 
+    if (debug) {
+        webui.root_module.addCMacro("WEBUI_LOG", "");
+    }
     webui.addCSourceFile(.{
         .file = b.path("src/webui.c"),
         .flags = if (enable_tls) tls_flags else no_tls_flags,