diff --git a/addons/godot_xterm/native/SConstruct b/addons/godot_xterm/native/SConstruct
index a24e697..c6cbc5b 100644
--- a/addons/godot_xterm/native/SConstruct
+++ b/addons/godot_xterm/native/SConstruct
@@ -198,9 +198,9 @@ env.Append(CPPPATH=[
 ])
 
 sources = []
+sources.append('thirdparty/libtsm/build/external/wcwidth/wcwidth.c')
 sources.append('thirdparty/libtsm/build/src/shared/shl-htable.c')
 sources.append(Glob('thirdparty/libtsm/build/src/tsm/*.c'))
-sources.append(Glob('thirdparty/libtsm/build/external/wcwidth/*.c'))
 
 libtsm = env.StaticLibrary(
     target='thirdparty/libtsm/build/bin/libtsm.{}.{}.{}{}'.format(
diff --git a/addons/godot_xterm/native/thirdparty/libtsm b/addons/godot_xterm/native/thirdparty/libtsm
index cc6d319..308bc9d 160000
--- a/addons/godot_xterm/native/thirdparty/libtsm
+++ b/addons/godot_xterm/native/thirdparty/libtsm
@@ -1 +1 @@
-Subproject commit cc6d319df39fe0ed5f0523f42b8e53e3b16f2ae0
+Subproject commit 308bc9dc51819c1da0b4690e9a0654d28e83fc3c