diff --git a/src/link/MachO/ZigObject.zig b/src/link/MachO/ZigObject.zig
index 680f19a245..b363ab91ed 100644
--- a/src/link/MachO/ZigObject.zig
+++ b/src/link/MachO/ZigObject.zig
@@ -979,7 +979,9 @@ fn updateDeclCode(
     sym.out_n_sect = sect_index;
     atom.out_n_sect = sect_index;
 
-    sym.name = try self.strtab.insert(gpa, decl.fqn.toSlice(ip));
+    const sym_name = try std.fmt.allocPrintZ(gpa, "_{s}", .{decl.fqn.toSlice(ip)});
+    defer gpa.free(sym_name);
+    sym.name = try self.strtab.insert(gpa, sym_name);
     atom.flags.alive = true;
     atom.name = sym.name;
     nlist.n_strx = sym.name;
diff --git a/test/link/link.zig b/test/link/link.zig
index a098da757d..aee3bbe01b 100644
--- a/test/link/link.zig
+++ b/test/link/link.zig
@@ -74,8 +74,9 @@ fn addCompileStep(
             .target = base.target,
             .optimize = base.optimize,
             .root_source_file = rsf: {
+                const name = b.fmt("{s}.zig", .{overlay.name});
                 const bytes = overlay.zig_source_bytes orelse break :rsf null;
-                break :rsf b.addWriteFiles().add("a.zig", bytes);
+                break :rsf b.addWriteFiles().add(name, bytes);
             },
             .pic = overlay.pic,
             .strip = if (base.strip) |s| s else overlay.strip,
diff --git a/test/link/macho.zig b/test/link/macho.zig
index 7dd27c0467..6c047ee322 100644
--- a/test/link/macho.zig
+++ b/test/link/macho.zig
@@ -916,7 +916,7 @@ fn testLinksection(b: *Build, opts: Options) *Step {
 
     if (opts.optimize == .Debug) {
         check.checkInSymtab();
-        check.checkContains("(__TEXT,__TestGenFnA) _a.testGenericFn__anon_");
+        check.checkContains("(__TEXT,__TestGenFnA) _main.testGenericFn__anon_");
     }
 
     test_step.dependOn(&check.step);
@@ -2519,11 +2519,20 @@ fn testUnresolvedError(b: *Build, opts: Options) *Step {
     });
     exe.addObject(obj);
 
-    expectLinkErrors(exe, test_step, .{ .exact = &.{
-        "error: undefined symbol: _foo",
-        "note: referenced by /?/a.o:_bar",
-        "note: referenced by /?/main.o:_a.main",
-    } });
+    // TODO order should match across backends if possible
+    if (opts.use_llvm) {
+        expectLinkErrors(exe, test_step, .{ .exact = &.{
+            "error: undefined symbol: _foo",
+            "note: referenced by /?/a.o:_bar",
+            "note: referenced by /?/main.o:_main.main",
+        } });
+    } else {
+        expectLinkErrors(exe, test_step, .{ .exact = &.{
+            "error: undefined symbol: _foo",
+            "note: referenced by /?/main.o:_main.main",
+            "note: referenced by /?/a.o:__TEXT$__text_zig",
+        } });
+    }
 
     return test_step;
 }