diff --git a/Dockerfile b/Dockerfile
index c3d24d2..73123cb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,7 +21,7 @@ RUN ./build-llvm.sh $TOOLCHAIN_PREFIX
 ENV TOOLCHAIN_ARCHS="i686 x86_64 armv7 aarch64"
 
 # Install the usual $TUPLE-clang binaries
-COPY wrappers/clang-target-wrapper ./wrappers/
+COPY wrappers/clang-target-wrapper.sh ./wrappers/
 COPY install-wrappers.sh .
 RUN ./install-wrappers.sh $TOOLCHAIN_PREFIX
 
diff --git a/install-wrappers.sh b/install-wrappers.sh
index 7736163..90a01b9 100755
--- a/install-wrappers.sh
+++ b/install-wrappers.sh
@@ -11,10 +11,10 @@ PREFIX="$1"
 : ${ARCHS:=${TOOLCHAIN_ARCHS-i686 x86_64 armv7 aarch64}}
 
 mkdir -p $PREFIX/bin
-cp wrappers/clang-target-wrapper $PREFIX/bin
+cp wrappers/clang-target-wrapper.sh $PREFIX/bin
 cd $PREFIX/bin
 for arch in $ARCHS; do
     for exec in clang clang++; do
-        ln -sf clang-target-wrapper $arch-w64-mingw32-$exec
+        ln -sf clang-target-wrapper.sh $arch-w64-mingw32-$exec
     done
 done
diff --git a/wrappers/clang-target-wrapper b/wrappers/clang-target-wrapper.sh
similarity index 100%
rename from wrappers/clang-target-wrapper
rename to wrappers/clang-target-wrapper.sh