diff --git a/extra/llvm/build b/extra/llvm/build
index 882ec66a..198bfbc5 100755
--- a/extra/llvm/build
+++ b/extra/llvm/build
@@ -24,6 +24,8 @@ cmake --install build
 # Use new llvm-config to generate a pkg-config file.
 PATH="$1/usr/bin:$PATH"
 mkdir -p "$1/usr/lib/pkgconfig"
+
+# shellcheck disable=2016
 sed -e "s|$1||" -e 's|/usr/include|\${includedir}|' \
     > "$1/usr/lib/pkgconfig/llvm.pc" <<EOF
 prefix=/usr