diff --git a/test/t/008_avg.pl b/test/t/008_avg.pl
index 0cfc273..e84228a 100644
--- a/test/t/008_avg.pl
+++ b/test/t/008_avg.pl
@@ -2,7 +2,7 @@ use strict;
 use warnings;
 use PostgresNode;
 use TestLib;
-use Test::More tests => 4;
+use Test::More tests => 5;
 
 # Initialize node
 my $node = get_new_node('node');
@@ -13,7 +13,7 @@ $node->start;
 $node->safe_psql("postgres", "CREATE EXTENSION vector;");
 $node->safe_psql("postgres", "CREATE TABLE tst (v vector(3));");
 $node->safe_psql("postgres",
-    "INSERT INTO tst SELECT ARRAY[1.01 + random(), 2.01 + random(), 3.01 + random()] FROM generate_series(1, 1000000) i;"
+	"INSERT INTO tst SELECT ARRAY[1.01 + random(), 2.01 + random(), 3.01 + random()] FROM generate_series(1, 1000000) i;"
 );
 
 # Test avg
@@ -25,3 +25,12 @@ like($avg, qr/,3\.5/);
 # Test explain
 my $explain = $node->safe_psql("postgres", "EXPLAIN SELECT AVG(v) FROM tst;");
 like($explain, qr/Partial Aggregate/);
+
+# Test matches real
+$node->safe_psql("postgres", "CREATE TABLE tst2 (r real, v vector(1));");
+$node->safe_psql("postgres",
+	"INSERT INTO tst2 SELECT t.r, ARRAY[t.r] FROM (SELECT random() AS r FROM generate_series(1, 1000000) t0) t;"
+);
+my $expected = $node->safe_psql("postgres", "SELECT AVG(r)::float4 FROM tst2;");
+$avg = $node->safe_psql("postgres", "SELECT AVG(v) FROM tst2;");
+is($avg, "[$expected]");