diff --git a/src/borrowed.rs b/src/borrowed/mod.rs
similarity index 100%
rename from src/borrowed.rs
rename to src/borrowed/mod.rs
diff --git a/src/owned.rs b/src/owned/mod.rs
similarity index 100%
rename from src/owned.rs
rename to src/owned/mod.rs
diff --git a/src/parser.rs b/src/parser/mod.rs
similarity index 100%
rename from src/parser.rs
rename to src/parser/mod.rs