diff --git a/passes/cmds/tee.cc b/passes/cmds/tee.cc
index 39ed4a7a85f..853f1bad36f 100644
--- a/passes/cmds/tee.cc
+++ b/passes/cmds/tee.cc
@@ -72,7 +72,9 @@ struct TeePass : public Pass {
 			}
 			if ((args[argidx] == "-o" || args[argidx] == "-a") && argidx+1 < args.size()) {
 				const char *open_mode = args[argidx] == "-o" ? "w" : "a+";
-				FILE *f = fopen(args[++argidx].c_str(), open_mode);
+				auto path = args[++argidx];
+				rewrite_filename(path);
+				FILE *f = fopen(path.c_str(), open_mode);
 				yosys_input_files.insert(args[argidx]);
 				if (f == NULL) {
 					for (auto cf : files_to_close)