diff --git a/+af_tools/extendpolar.m b/+af_tools/extendpolar.m
index d930dc27d221e643d936096269db537d17b6bebb..74cb50b57aea9276bc9c0777703c7494f7ff91cc 100644
--- a/+af_tools/extendpolar.m
+++ b/+af_tools/extendpolar.m
@@ -96,7 +96,7 @@ if sign(min(alpha(:,1))) == sign(max(alpha(:,1)))
 end
 
 try
-    findstall(alpha, cl, cd)
+    findstall(alpha, cl, cd);
 catch
     error('MATLAB:extendpolar:noStall',['To be extended, a polar must at '...
         'least contain the stall point.']);
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5244efa82217e191d14e46b8aef4cb4a7f088d5c..05ad16669418829589d95a0addd94b2ce4d0d797 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,8 +9,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
-- Initial release
-
 ### Changed
 
 ### Deprecated
@@ -20,3 +18,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 ### Security
+
+## [1.0.0] - 2022-04-08
+
+- Initial release
+
+[Unreleased]: https://gitlab.uliege.be/am-dept/matlab_airfoil_toolbox/-/compare/v1.0.0...master
+[1.0.0]: https://gitlab.uliege.be/am-dept/matlab_airfoil_toolbox/-/releases/v1.0.0
diff --git a/tests/test_extendpolar.m b/tests/test_extendpolar.m
index 1eebcb644e280097a2cf726369693f493670f1d5..0c8e5fc06680850bbf67c2f7dbaafa8c7af64894 100644
--- a/tests/test_extendpolar.m
+++ b/tests/test_extendpolar.m
@@ -192,3 +192,21 @@ end
 %% Test if function returns expected outputs
 
 
+function test_correctAlphaSize(testCase)
+% Verify if the output alpha has the correct size
+% Should not re-expand polar that already covers the full range
+
+Polar = dummysinglepolar();
+stepAlpha = min(diff(Polar.alpha));
+fullRange = (-pi:stepAlpha:pi)';
+
+[alphaExt, clExt, cdExt] = af_tools.extendpolar(Polar);
+[alphaExt2, clExt2, cdExt2] = af_tools.extendpolar(alphaExt, clExt, cdExt);
+
+verifyEqual(testCase, alphaExt, fullRange, 'AbsTol',1e-9);
+
+verifyEqual(testCase, alphaExt2, alphaExt);
+verifyEqual(testCase, clExt2, clExt);
+verifyEqual(testCase, cdExt2, cdExt);
+
+end