diff --git a/README.md b/README.md
index 6db902b..ea044b1 100644
--- a/README.md
+++ b/README.md
@@ -21,11 +21,11 @@ Once you have installed Funnel, you can run the tests. This will automatically r
 ```
 bash ./run-tests.sh
 ```
-or, you can run using cargo nextest using
+or, you can run using:
 ```
 cargo nextest run
 ```
-For checking the unit converage, you can run:
+For checking the unit coverage, you can run:
 ```
 cargo llvm-cov nextest
 ```
diff --git a/build-models.sh b/build-models.sh
index ec122d0..58b9dbe 100755
--- a/build-models.sh
+++ b/build-models.sh
@@ -1,6 +1,8 @@
 # Exit immediately if a command exits with a non-zero status.
 set -e
 
+set -u 
+
 # Ensure the OpenAPI Generator JAR file is set up
 mkdir -p ~/bin/openapitools
 OPENAPI_GENERATOR_JAR=~/bin/openapitools/openapi-generator-cli.jar