diff --git a/mingw-w64-crt/ChangeLog b/mingw-w64-crt/ChangeLog
index 82355f7..58cce30 100644
--- a/mingw-w64-crt/ChangeLog
+++ b/mingw-w64-crt/ChangeLog
@@ -1,3 +1,8 @@
+2011-10-09  Ruben Van Boxem  <vanboxem.ruben@gmail.com>
+
+	* misc/isblank.c: Replaced _cdecl by __cdecl.
+	* misc/iswblank.c: Likewise.
+
 2011-10-04  Ozkan Sezer  <sezeroz@gmail.com>
 
 	* revstamp.h: Set latest information.
diff --git a/mingw-w64-crt/misc/isblank.c b/mingw-w64-crt/misc/isblank.c
index ca530ce..ce6247c 100644
--- a/mingw-w64-crt/misc/isblank.c
+++ b/mingw-w64-crt/misc/isblank.c
@@ -1,7 +1,7 @@
 #define __NO_CTYPE_LINES
 #include <ctype.h>
 
-int _cdecl isblank (int _C)
+int __cdecl isblank (int _C)
 {
   return (_isctype(_C, _BLANK) || _C == '\t');
 }
diff --git a/mingw-w64-crt/misc/iswblank.c b/mingw-w64-crt/misc/iswblank.c
index bc696a3..bdf73e5 100644
--- a/mingw-w64-crt/misc/iswblank.c
+++ b/mingw-w64-crt/misc/iswblank.c
@@ -1,7 +1,7 @@
 #define _CRT_WCTYPE_NOINLINE
 #include <ctype.h>
 
-int _cdecl iswblank (wint_t _C)
+int __cdecl iswblank (wint_t _C)
 {
   return (iswctype(_C, _BLANK) || _C == '\t');
 }