diff --git a/data/syntax/cpp.xml b/data/syntax/cpp.xml
--- a/data/syntax/cpp.xml
+++ b/data/syntax/cpp.xml
@@ -16,7 +16,7 @@
     indenter="cstyle"
     style="C++"
     mimetype="text/x-c++src;text/x-c++hdr;text/x-chdr"
-    extensions="*.c++;*.cxx;*.cpp;*.cc;*.C;*.h;*.hh;*.H;*.h++;*.hxx;*.hpp;*.hcc;*.ino;*.pde;*.moc"
+    extensions="*.c++;*.cxx;*.cpp;*.cc;*.C;*.cu;*.h;*.hh;*.H;*.h++;*.hxx;*.hpp;*.hcc;*.cuh;*.ino;*.pde;*.moc"
     author="Alex Turbov (i.zaufi@gmail.com)"
     license="LGPL"
     priority="9"