diff --git a/.github/workflows/CI.yaml b/.github/workflows/CI.yaml
index 582703c..cb2bac0 100644
--- a/.github/workflows/CI.yaml
+++ b/.github/workflows/CI.yaml
@@ -21,6 +21,7 @@ jobs:
           - 'R2021b'
         julia-version: 
           - '1.6'
+          - '1'
         os: 
           - ubuntu-latest
         arch: 
@@ -45,7 +46,7 @@ jobs:
         with:
           command: addpath('deps'), build
       - name: Add Mex.jl package to the default Julia environment
-        run: julia -e 'using Pkg; Pkg.add(url=".");'
+        run: julia -e 'using Pkg; Pkg.add(url="."); using Mex;'
       - name: Run MATLAB tests
         uses: matlab-actions/run-tests@v1
         with:
diff --git a/examples/exn_thrower.m b/examples/exn_thrower.m
index 9212a10..1a72eab 100644
--- a/examples/exn_thrower.m
+++ b/examples/exn_thrower.m
@@ -1,4 +1,4 @@
-function exn_thrower()
+function result = exn_thrower()
 
 error('I take exception to everything.');
 
diff --git a/examples/matlab_exception.m b/examples/matlab_exception.m
index 23edece..2851b52 100644
--- a/examples/matlab_exception.m
+++ b/examples/matlab_exception.m
@@ -3,7 +3,7 @@
 function matlab_exception()
 
 try
-    jl.call('Mex.call_matlab', int32(0), exn_thrower)
+    call_matlab_function(exn_thrower);
 catch e
     disp(getReport(e));
 end