diff --git a/gettext-use-proper-cdecl.patch b/gettext-use-proper-cdecl.patch
new file mode 100644
index 0000000..de9576d
--- /dev/null
+++ b/gettext-use-proper-cdecl.patch
@@ -0,0 +1,33 @@
+--- gettext-runtime/gnulib-lib/msvc-inval.c.orig	2013-06-15 18:01:47.658316614 +0200
++++ gettext-runtime/gnulib-lib/msvc-inval.c	2013-06-15 18:01:51.492348702 +0200
+@@ -28,7 +28,7 @@
+ 
+ # if MSVC_INVALID_PARAMETER_HANDLING == DEFAULT_HANDLING
+ 
+-static void cdecl
++static void __cdecl
+ gl_msvc_invalid_parameter_handler (const wchar_t *expression,
+                                    const wchar_t *function,
+                                    const wchar_t *file,
+--- gettext-tools/gnulib-lib/msvc-inval.c.orig	2013-06-15 18:02:11.335514821 +0200
++++ gettext-tools/gnulib-lib/msvc-inval.c	2013-06-15 18:02:20.387590641 +0200
+@@ -28,7 +28,7 @@
+ 
+ # if MSVC_INVALID_PARAMETER_HANDLING == DEFAULT_HANDLING
+ 
+-static void cdecl
++static void __cdecl
+ gl_msvc_invalid_parameter_handler (const wchar_t *expression,
+                                    const wchar_t *function,
+                                    const wchar_t *file,
+--- gettext-tools/libgettextpo/msvc-inval.c.orig	2013-06-15 18:02:25.814636031 +0200
++++ gettext-tools/libgettextpo/msvc-inval.c	2013-06-15 18:02:31.912687078 +0200
+@@ -28,7 +28,7 @@
+ 
+ # if MSVC_INVALID_PARAMETER_HANDLING == DEFAULT_HANDLING
+ 
+-static void cdecl
++static void __cdecl
+ gl_msvc_invalid_parameter_handler (const wchar_t *expression,
+                                    const wchar_t *function,
+                                    const wchar_t *file,
diff --git a/mingw-gettext.spec b/mingw-gettext.spec
index 06fba09..28abaf2 100644
--- a/mingw-gettext.spec
+++ b/mingw-gettext.spec
@@ -33,6 +33,9 @@ BuildRequires: mingw64-termcap
 #BuildRequires: mingw32-expat
 #BuildRequires: mingw32-glib2
 
+# Fix FTBFS due to invalid use of cdecl (__cdecl should be used instead)
+Patch0:        gettext-use-proper-cdecl.patch
+
 
 %description
 MinGW Windows Gettext library
@@ -74,6 +77,7 @@ Static version of the MinGW Windows Gettext library.
 
 %prep
 %setup -q -n gettext-%{version}
+%patch0 -p0
 
 
 %build
@@ -184,7 +188,10 @@ find $RPM_BUILD_ROOT -name "*.la" -delete
 
 
 %changelog
-* Sat Jun 15 2013 Erik van Pienbroek <epienbro@fedoraproject.org - 0.18.2.1-2
+* Sat Jun 15 2013 Erik van Pienbroek <epienbro@fedoraproject.org> - 0.18.2.1-3
+- Fix FTBFS due to invalid use of cdecl
+
+* Sat Jun 15 2013 Erik van Pienbroek <epienbro@fedoraproject.org> - 0.18.2.1-2
 - Rebuild to resolve InterlockedCompareExchange regression in mingw32 libraries
 
 * Sat May  4 2013 Erik van Pienbroek <epienbro@fedoraproject.org> - 0.18.2.1-1