diff --git a/runtime/syntax/cpp.vim b/runtime/syntax/cpp.vim
index 5a478fb..9cb0860 100644
--- a/runtime/syntax/cpp.vim
+++ b/runtime/syntax/cpp.vim
@@ -2,7 +2,7 @@
 " Language:	C++
 " Current Maintainer:	vim-jp (https://github.com/vim-jp/vim-cpp)
 " Previous Maintainer:	Ken Shan <ccshan@post.harvard.edu>
-" Last Change:	2016 Oct 28
+" Last Change:	2017 Jun 05
 
 " quit when a syntax file was already loaded
 if exists("b:current_syntax")
@@ -48,7 +48,7 @@
 if !exists("cpp_no_cpp14")
   syn case ignore
   syn match cppNumber		display "\<0b[01]\('\=[01]\+\)*\(u\=l\{0,2}\|ll\=u\)\>"
-  syn match cppNumber		display "\<[1-9]\('\=\d\+\)*\(u\=l\{0,2}\|ll\=u\)\>"
+  syn match cppNumber		display "\<[1-9]\('\=\d\+\)*\(u\=l\{0,2}\|ll\=u\)\>" contains=cFloat
   syn match cppNumber		display "\<0x\x\('\=\x\+\)*\(u\=l\{0,2}\|ll\=u\)\>"
   syn case match
 endif