diff --git a/thirdparty/gbstring.c b/thirdparty/sdd.c
similarity index 99%
rename from thirdparty/gbstring.c
rename to thirdparty/sdd.c
index c45d7b8..70241fd 100644
--- a/thirdparty/gbstring.c
+++ b/thirdparty/sdd.c
@@ -1,4 +1,4 @@
-#include "gbstring.h"
+#include "sdd.h"
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/thirdparty/gbstring.h b/thirdparty/sdd.h
similarity index 100%
rename from thirdparty/gbstring.h
rename to thirdparty/sdd.h
diff --git a/tool b/tool
index e9b8492..6d71db7 100755
--- a/tool
+++ b/tool
@@ -308,7 +308,7 @@ build_target() {
       out_exe=cli
       ;;
     orca|tui)
-      add source_files osc_out.c term_util.c sysmisc.c thirdparty/gbstring.c tui_main.c
+      add source_files osc_out.c term_util.c sysmisc.c thirdparty/sdd.c tui_main.c
       add cc_flags -D_XOPEN_SOURCE_EXTENDED=1
       # thirdparty headers (like sokol_time.h) should get -isystem for their
       # include dir so that any warnings they generate with our warning flags