diff --git a/test/expected/sparsevec_functions.out b/test/expected/sparsevec_functions.out
index c1cbf3e..27359ec 100644
--- a/test/expected/sparsevec_functions.out
+++ b/test/expected/sparsevec_functions.out
@@ -142,6 +142,18 @@ SELECT l2_distance('{}/2'::sparsevec, '{1:3,2:4}/2');
            5
 (1 row)
 
+SELECT l2_distance('{1:3}/2'::sparsevec, '{2:4}/2');
+ l2_distance 
+-------------
+           5
+(1 row)
+
+SELECT l2_distance('{2:4}/2'::sparsevec, '{1:3}/2');
+ l2_distance 
+-------------
+           5
+(1 row)
+
 SELECT l2_distance('{}/2'::sparsevec, '{2:1}/2');
  l2_distance 
 -------------
diff --git a/test/sql/sparsevec_functions.sql b/test/sql/sparsevec_functions.sql
index af1254f..6fb5cdf 100644
--- a/test/sql/sparsevec_functions.sql
+++ b/test/sql/sparsevec_functions.sql
@@ -25,6 +25,8 @@ SELECT l2_norm('{2:1}/2'::sparsevec);
 SELECT l2_norm('{1:3e37,2:4e37}/2'::sparsevec)::real;
 
 SELECT l2_distance('{}/2'::sparsevec, '{1:3,2:4}/2');
+SELECT l2_distance('{1:3}/2'::sparsevec, '{2:4}/2');
+SELECT l2_distance('{2:4}/2'::sparsevec, '{1:3}/2');
 SELECT l2_distance('{}/2'::sparsevec, '{2:1}/2');
 SELECT '{}/2'::sparsevec <-> '{1:3,2:4}/2';