diff --git a/lib/compiler/Maker/Step/Compile.zig b/lib/compiler/Maker/Step/Compile.zig
index 8db4b2be2a825da2fae3780043a35db491d28273..5407221142a2234a3e8189a7fba0febbdc4e3f28 100644
--- a/lib/compiler/Maker/Step/Compile.zig
+++ b/lib/compiler/Maker/Step/Compile.zig
@@ -45,12 +45,14 @@ pub fn make(
 
     try lowerZigArgs(arena, compile, compile_index, maker, progress_node, &argv, false);
 
+    const incremental = conf_comp.flags4.incremental.toBool() orelse graph.incremental == true;
+
     const maybe_output_dir = Step.evalZigProcess(
         compile_index,
         maker,
         argv.items,
         progress_node,
-        (graph.incremental == true) and (maker.watch or maker.web_server != null),
+        incremental and (maker.watch or maker.web_server != null),
     ) catch |err| switch (err) {
         error.NeedCompileErrorCheck => {
             try checkCompileErrors(arena, maker, compile_index);