diff --git a/src/link/MachO/Object.zig b/src/link/MachO/Object.zig
index 2c49108b82..2d27c3d816 100644
--- a/src/link/MachO/Object.zig
+++ b/src/link/MachO/Object.zig
@@ -515,8 +515,9 @@ pub fn getSourceSymbol(self: Object, index: u32) ?macho.nlist_64 {
 }
 
 /// Caller owns memory.
-pub fn createReverseSymbolLookup(self: Object, gpa: Allocator) ![]u32 {
-    const lookup = try gpa.alloc(u32, self.in_symtab.?.len);
+pub fn createReverseSymbolLookup(self: Object, arena: Allocator) ![]u32 {
+    const symtab = self.in_symtab orelse return &[0]u32{};
+    const lookup = try arena.alloc(u32, symtab.len);
     for (self.source_symtab_lookup) |source_id, id| {
         lookup[source_id] = @intCast(u32, id);
     }
diff --git a/src/link/MachO/zld.zig b/src/link/MachO/zld.zig
index bde418642a..c7b34723ac 100644
--- a/src/link/MachO/zld.zig
+++ b/src/link/MachO/zld.zig
@@ -3486,6 +3486,7 @@ pub const Zld = struct {
         scoped_log.debug("locals:", .{});
         for (self.objects.items) |object, id| {
             scoped_log.debug("  object({d}): {s}", .{ id, object.name });
+            if (object.in_symtab == null) continue;
             for (object.symtab) |sym, sym_id| {
                 mem.set(u8, &buf, '_');
                 scoped_log.debug("    %{d}: {s} @{x} in sect({d}), {s}", .{
@@ -3641,7 +3642,7 @@ pub const Zld = struct {
             sym.n_sect,
         });
 
-        if (atom.getFile() != null)  {
+        if (atom.getFile() != null) {
             var it = Atom.getInnerSymbolsIterator(self, atom_index);
             while (it.next()) |sym_loc| {
                 const inner = self.getSymbol(sym_loc);