diff --git a/build_tc.sh b/build_tc.sh
index 2df8c5b..01f15ba 100644
--- a/build_tc.sh
+++ b/build_tc.sh
@@ -18,9 +18,11 @@ else
   exit 1
 fi
 
-if [ ! -d "$BUILD" ]; then
-  mkdir $BUILD $BUILD/include $BUILD/lib $BUILD/lib/pkgconfig
-fi
+# Create build dirs
+[ ! -d "$BUILD" ] && mkdir $BUILD
+[ ! -d "$BUILD/include" ] && mkdir $BUILD/include
+[ ! -d "$BUILD/lib" ] && mkdir $BUILD/lib
+[ ! -d "$BUILD/lib/pkgconfig" ] && mkdir $BUILD/lib/pkgconfig
 
 function compile {
   cd $SRC/$1
@@ -35,7 +37,7 @@ function compile {
 if [ "$STEP" == "svt-av1" ]; then
   cd $SRC/svt-av1/Build
   cmake .. -G"Visual Studio 15 2017" -A x64 -DCMAKE_INSTALL_PREFIX=$BUILD -DCMAKE_CONFIGURATION_TYPES="Debug;Release"
-  MSBuild.exe /maxcpucount:$CPU_CORES /property:Configuration="$MSBUILD_CONFIG" /property:ConfigurationType="StaticLibrary" Source/Lib/Encoder/SvtAv1Enc.vcxproj
+  MSBuild.exe /maxcpucount:$CPU_CORES /property:Configuration="$MSBUILD_CONFIG" /property:ConfigurationType="StaticLibrary" /property:TargetExt=".lib" Source/Lib/Encoder/SvtAv1Enc.vcxproj
   cp ../Bin/Release/$MSBUILD_CONFIG/SvtAv1Enc.lib $BUILD/lib/
   cp SvtAv1Enc.pc $BUILD/lib/pkgconfig/
   cd $SRC/ffmpeg