diff --git a/build-aux/rust_boilerplate.mk.in b/build-aux/rust_boilerplate.mk.in
index fc61df56d..fd139b466 100644
--- a/build-aux/rust_boilerplate.mk.in
+++ b/build-aux/rust_boilerplate.mk.in
@@ -57,7 +57,7 @@ $(_RUST_OUT) $(CARGO_BIN): $(@PACKAGE_VAR@_SOURCES) $(EXTRA_@PACKAGE_VAR@_SOURCE
 	set -e
 	export AUTOTOOLS_DEPENDENCIES="$^"
 	$(CARGO_ENV) $(CARGO) build $(CARGO_VERBOSE) $(CARGO_FEATURE_ARGS) $(CARGO_RELEASE_ARGS)
-	$(CARGO_ENV) $(CARGO) build --quiet --message-format=json $(CARGO_FEATURE_ARGS) $(CARGO_RELEASE_ARGS) |
+	$(CARGO_ENV) $(CARGO) build --quiet --message-format=json $(CARGO_FEATURE_ARGS) $(CARGO_RELEASE_ARGS) | \
 		$(JQ) -sr 'map(select(.reason == "build-script-executed")) | last | .out_dir' > $(_RUST_OUT)
 
 RUST_DEVELOPER_TARGETS = cargo-test clippy rustfmt