diff --git a/.prettierignore b/.prettierignore
index 2699f7e10..5613ff991 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -26,3 +26,6 @@ website/.next
 # fuzz corpus files
 test/fuzz-libghostty/corpus/
 test/fuzz-libghostty/afl-out/
+
+# Swift example build outputs
+example/swift-vt-xcframework/.build/