diff --git a/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Dark/C++.xshd b/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Dark/C++.xshd
index dc89ef8..bd57141 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Dark/C++.xshd
+++ b/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Dark/C++.xshd
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 
-<SyntaxDefinition name="C++" extensions=".c;.h;.cc;.cpp;.cxx;.hpp;.ino">
+<SyntaxDefinition name="C++" extensions=".c;.h;.cc;.cpp;.cxx;.hpp;.ino;.cu;.cuh">
 
     <Environment> 
         <Default color="#D4D4D4" bgcolor="#1E1E1E"/>
diff --git a/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/C++.xshd b/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/C++.xshd
index 83387c4..2b00bc5 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/C++.xshd
+++ b/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/C++.xshd
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 
-<SyntaxDefinition name="C++" extensions=".c;.h;.cc;.cpp;.cxx;.hpp;.ino">
+<SyntaxDefinition name="C++" extensions=".c;.h;.cc;.cpp;.cxx;.hpp;.ino;.cu;.cuh">
 
     <Environment> 
         <Default color="Black" bgcolor="#FFFFFF"/>