diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ad75aa20ec2..8c97086a319 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
+
+	* config/nds32/nds32.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): Use unsigned int
+	type and 32-bit size.
+
 2018-04-01  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/85090
diff --git a/gcc/config/nds32/nds32.h b/gcc/config/nds32/nds32.h
index b12274ac25e..3ac071872b9 100644
--- a/gcc/config/nds32/nds32.h
+++ b/gcc/config/nds32/nds32.h
@@ -516,8 +516,8 @@ enum nds32_builtins
 
 #define SIZE_TYPE "long unsigned int"
 #define PTRDIFF_TYPE "long int"
-#define WCHAR_TYPE "short unsigned int"
-#define WCHAR_TYPE_SIZE 16
+#define WCHAR_TYPE "unsigned int"
+#define WCHAR_TYPE_SIZE 32
 
 
 /* Register Usage.  */