diff --git a/SPECS/mingw-winpthreads.spec b/SPECS/mingw-winpthreads.spec
index 53cb63b..b922de8 100644
--- a/SPECS/mingw-winpthreads.spec
+++ b/SPECS/mingw-winpthreads.spec
@@ -35,6 +35,7 @@ Source0:        http://downloads.sourceforge.net/mingw-w64/mingw-w64-v%{version}
 Patch0:         0001-winpthreads-src-dll_math.c-Implement-__divmoddi4-for.patch
 
 BuildArch:      noarch
+ExclusiveArch: %{ix86} x86_64 %{arm}
 
 BuildRequires:  mingw32-filesystem >= 95
 BuildRequires:  mingw64-filesystem >= 95