diff --git a/Readme.md b/Readme.md
index 1b2deb9..0877c7f 100644
--- a/Readme.md
+++ b/Readme.md
@@ -1,6 +1,8 @@
 # Client
 
 Requires [nak](https://github.com/fiatjaf/nak/tree/master)
+Requires [jq](https://stedolan.github.io/jq/tree/master)
+Requires [awk](https://www.gnu.org/software/gawk)
 
 1. add `./gna` to you `$PATH`
 2. run `gna` and follow instructions
diff --git a/gna.sh b/gna.sh
index 873c3ca..ad5e554 100755
--- a/gna.sh
+++ b/gna.sh
@@ -11,6 +11,11 @@ if ! [ -x "$(command -v jq)" ]; then
   echo 'Please install jq from https://stedolan.github.io/jq/download/'
 fi
 
+if ! [ -x "$(command -v awk)" ]; then
+  echo 'Error: awk is not installed.' >&2
+  echo 'Please install awk from https://www.gnu.org/software/gawk/'
+fi
+
 if ! [ -x "$(command -v pass)" ]; then
   echo 'Error: pass is not installed.' >&2
   echo 'Please install pass from https://www.passwordstore.org/'