diff --git a/External/build.sh b/External/build.sh
index ab21f34..f69288f 100755
--- a/External/build.sh
+++ b/External/build.sh
@@ -36,12 +36,12 @@ if [[ $RUNNER_OS == 'Linux' ]]; then
     $SUDO apt-get install -y \
         $GCC \
         $GPP \
-	git \
+        git \
         cmake \
         ninja-build \
         wayland-scanner++ \
         wayland-protocols \
-	meson \
+        meson \
         pkg-config$TARGET_APT_ARCH \
         libasound2-dev$TARGET_APT_ARCH \
         libdbus-1-dev$TARGET_APT_ARCH \
@@ -49,9 +49,9 @@ if [[ $RUNNER_OS == 'Linux' ]]; then
         libgl1-mesa-dev$TARGET_APT_ARCH \
         libgles2-mesa-dev$TARGET_APT_ARCH \
         libglu1-mesa-dev$TARGET_APT_ARCH \
-	libgtk-3-dev$TARGET_APT_ARCH \
+        libgtk-3-dev$TARGET_APT_ARCH \
         libibus-1.0-dev$TARGET_APT_ARCH \
-	libpango1.0-dev$TARGET_APT_ARCH \
+        libpango1.0-dev$TARGET_APT_ARCH \
         libpulse-dev$TARGET_APT_ARCH \
         libsndio-dev$TARGET_APT_ARCH \
         libudev-dev$TARGET_APT_ARCH \
@@ -74,9 +74,9 @@ if [[ $RUNNER_OS == 'Linux' ]]; then
     if [[ $TARGET_APT_ARCH != :i386 ]]; then
         # Build libdecor.
         # This is required so that window decorations can work on wayland.
-	# The support will only be enabled in SDL, but we're not shipping the libdecor binaries
-	# because making them work from a c# app as everything else does (via runtimes) is too difficult.
-	# Also skip i386 because attempting to support this for i386 is a pain.
+        # The support will only be enabled in SDL, but we're not shipping the libdecor binaries
+        # because making them work from a c# app as everything else does (via runtimes) is too difficult.
+        # Also skip i386 because attempting to support this for i386 is a pain.
         # Special shoutouts to gnome for refusing to support server-side decorations.
         git clone https://gitlab.freedesktop.org/libdecor/libdecor.git
         cd libdecor