diff --git a/build-win.sh b/build-win.sh
index ae362b4..7f9a3f0 100644
--- a/build-win.sh
+++ b/build-win.sh
@@ -1,4 +1,4 @@
 export FFBUILD_FLAGS="--enable-ffnvcodec --enable-dxva2 --enable-amf"
 export FFBUILD_PLATFORM="win"
 
-FFMPEG_OS=mingw32 OPENH264_ARCH=i686 OPENH264_OS=mingw_nt CC=i686-w64-mingw32-gcc CXX=i686-w64-mingw32-g++ AR=i686-w64-mingw32-gcc-ar bash build.sh --arch i686
+FFMPEG_OS=mingw32 OPENH264_ARCH=x86_64 OPENH264_OS=mingw_nt CC=x86_64-w64-mingw32-gcc CXX=x86_64-w64-mingw32-g++ AR=x86_64-w64-mingw32-gcc-ar bash build.sh --arch x86_64
diff --git a/scripts/build-iconv.sh b/scripts/build-iconv.sh
index 3b48c30..7d9b3ab 100644
--- a/scripts/build-iconv.sh
+++ b/scripts/build-iconv.sh
@@ -14,7 +14,7 @@ rm iconv.tar.gz
 
 cd $iconvPath
 
-./configure --prefix=$PREFIX --arch=$ARCH --enable-static --disable-shared --with-pic --enable-extra-encodings --disable-doc
+./configure --prefix=$PREFIX --enable-static --disable-shared --with-pic --enable-extra-encodings --disable-doc
 
 make -j$JOBS