diff --git a/test/expected/functions.out b/test/expected/functions.out
index 648e80c..8627beb 100644
--- a/test/expected/functions.out
+++ b/test/expected/functions.out
@@ -170,6 +170,12 @@ SELECT angular_distance('[1,1]', '[1,1]');
                 0
 (1 row)
 
+SELECT angular_distance('[1,0]', '[0,1]');
+ angular_distance 
+------------------
+              0.5
+(1 row)
+
 SELECT angular_distance('[1,1]', '[-1,-1]');
  angular_distance 
 ------------------
diff --git a/test/sql/functions.sql b/test/sql/functions.sql
index b70f87b..06eb6da 100644
--- a/test/sql/functions.sql
+++ b/test/sql/functions.sql
@@ -39,6 +39,7 @@ SELECT l1_distance('[3e38]', '[-3e38]');
 SELECT angular_distance('[1,2]', '[2,4]');
 SELECT angular_distance('[1,2]', '[0,0]');
 SELECT angular_distance('[1,1]', '[1,1]');
+SELECT angular_distance('[1,0]', '[0,1]');
 SELECT angular_distance('[1,1]', '[-1,-1]');
 SELECT angular_distance('[1,2]', '[3]');
 SELECT angular_distance('[1,1]', '[1.1,1.1]');