diff --git a/.gitignore b/.gitignore
index 77f85e2..7e4a920 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,6 +5,13 @@
 # will have compiled files and executables
 /target
 
+# YouCompleteMe + its bundled RLS appear to create target directories within
+# the crate paths, contrary to the documentation of how workspaces work.
+# (As of https://github.com/ycm-core/YouCompleteMe.git f9906f8,
+# which pulls in rls from nightly-2020-04-17.)
+/yaserde/target
+/yaserde_derive/target
+
 # Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
 # More information here http://doc.crates.io/guide.html#cargotoml-vs-cargolock
 Cargo.lock