2 files changed, 3 insertions, 2 deletions
diff --git a/Makefile b/Makefile
index e261591a4..08497583b 100644
--- a/Makefile
+++ b/Makefile
@@ -40,7 +40,7 @@ CC = $(shell which clang-12 2>/dev/null || which clang)
 CXX = $(shell which clang++-12 2>/dev/null || which clang++)
 
 # macOS sed is different
-SED = $(shell which gsed || which sed)
+SED = $(shell which gsed 2>/dev/null || which sed)
 
 DEPS_DIR = $(shell pwd)/src/deps
 CPUS ?= $(shell nproc)
diff --git a/build.zig b/build.zig
index 1baa4c0f5..c0b59110d 100644
--- a/build.zig
+++ b/build.zig
@@ -214,7 +214,7 @@ pub fn build(b: *std.build.Builder) !void {
         //     if (target.getOsTag() == .macos) "-DUSE_CF_RETAIN_PTR=1" else "",
         // };
         const headers_step = b.step("headers-obj", "JSC headers Step #1");
-        var headers_obj: *std.build.LibExeObjStep = b.addObject("headers", "src/javascript/jsc/bindings/bindings-generator.zig");
+        const headers_obj: *std.build.LibExeObjStep = b.addObject("headers", "src/javascript/jsc/bindings/bindings-generator.zig");
         headers_obj.setMainPkgPath(javascript.main_pkg_path.?);
         headers_step.dependOn(&headers_obj.step);
 
@@ -290,6 +290,7 @@ pub fn build(b: *std.build.Builder) !void {
             obj.setBuildMode(mode);
 
             addPicoHTTP(obj);
+            addMimalloc(obj);
             obj.addPackagePath("clap", "src/deps/zig-clap/clap.zig");
 
             {