diff --git a/lib/compiler/resinator/main.zig b/lib/compiler/resinator/main.zig
index 4faf3feb02b171587cb1ce863c374b2cfa262e6a..08e6f7d4ce1247a5ac9101fa8fd27bc171afe0b0 100644
--- a/lib/compiler/resinator/main.zig
+++ b/lib/compiler/resinator/main.zig
@@ -156,7 +156,7 @@ pub fn main() !void {
                 try stdout.flush();
             }
 
-            preprocess.preprocess(&comp, &preprocessed_buf.writer, argv.items, maybe_dependencies_list) catch |err| switch (err) {
+            preprocess.preprocess(&comp, &preprocessed_buf.writer, argv.items, maybe_dependencies) catch |err| switch (err) {
                 error.GeneratedSourceError => {
                     try error_handler.emitAroDiagnostics(allocator, "failed during preprocessor setup (this is always a bug)", &comp);
                     std.process.exit(1);
diff --git a/lib/compiler/resinator/preprocess.zig b/lib/compiler/resinator/preprocess.zig
index 2a5dfd9f63a3d34172ba04ffd163f30dcdbf1564..97b320d50d7017b0dfc75b8f934f1617314b2c34 100644
--- a/lib/compiler/resinator/preprocess.zig
+++ b/lib/compiler/resinator/preprocess.zig
@@ -37,7 +37,7 @@ pub fn preprocess(
         error.FatalError => return error.GeneratedSourceError,
         else => |e| return e,
     };
-    const user_macros = comp.addSourceFromBuffer("<command line>", macro_buf.written()) catch |err| switch (err) {
+    const user_macros = comp.addSourceFromBuffer("<command line>", macro_buf.items) catch |err| switch (err) {
         error.FatalError => return error.GeneratedSourceError,
         else => |e| return e,
     };