diff --git a/rust-bindings/rust/Makefile b/rust-bindings/rust/Makefile
index f7500861..25124814 100644
--- a/rust-bindings/rust/Makefile
+++ b/rust-bindings/rust/Makefile
@@ -1,6 +1,6 @@
 all: gir
 
-.PHONY: update-gir-files remove-gir-files merge-lgpl-docs
+.PHONY: gir gir-report update-gir-files remove-gir-files merge-lgpl-docs
 
 
 # -- gir generation --
@@ -11,6 +11,9 @@ gir: target/tools/bin/gir
 	target/tools/bin/gir -c conf/ostree-sys.toml
 	target/tools/bin/gir -c conf/ostree.toml
 
+gir-report: gir
+	target/tools/bin/gir -c conf/ostree.toml -m not_bound
+
 
 # -- LGPL docs generation --
 target/tools/bin/rustdoc-stripper: