diff --git a/build-aux/cargo.py b/build-aux/cargo.py
index 547bcc9..77ca8a3 100755
--- a/build-aux/cargo.py
+++ b/build-aux/cargo.py
@@ -15,6 +15,7 @@ args = parser.parse_args()
 
 environ["CARGO_TARGET_DIR"] = path.join(args.build_root, "target")
 environ["CARGO_HOME"] = path.join(args.build_root, "cargo-home")
+environ["OUT_DIR"] = path.join(args.build_root, "target")
 
 cargo_toml_path = path.join(args.source_root, "Cargo.toml")
 
diff --git a/src/meson.build b/src/meson.build
index f5dcc63..31fa543 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -31,7 +31,7 @@ else
   message('Building in debug mode')
 endif
 
-cargo_env = [ 'CARGO_HOME=' + cargo_home ]
+cargo_env = [ 'CARGO_HOME=' + cargo_home, 'OUT_DIR=' + meson.project_build_root() ]
 
 cargo_build = custom_target(
   'cargo-build',