diff --git a/ext/build.sh b/ext/build.sh
index 563c81c..c9505ad 100755
--- a/ext/build.sh
+++ b/ext/build.sh
@@ -116,5 +116,5 @@ rm -rf "$PREFIX/src/"
 popd
 
 # Define init files in core/ext and core/ext/lib so that importlib pathing will work
-touch "$PREFIX/__init__.py"
-touch "$PREFIX/lib/__init__.py"
+echo '"""Arb C libraries."""' > "$PREFIX/__init__.py"
+echo '"""Arb C libraries."""' > "$PREFIX/lib/__init__.py"