diff --git a/android-activity/generate-bindings.sh b/android-activity/generate-bindings.sh
index 530eeae..51c5602 100644
--- a/android-activity/generate-bindings.sh
+++ b/android-activity/generate-bindings.sh
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+# First install bindgen-cli via `cargo install bindgen-cli`
+
 if test -z "${ANDROID_NDK_ROOT}"; then
     export ANDROID_NDK_ROOT=${ANDROID_NDK_HOME}
 fi