diff --git a/contrib/btree_gin/btree_gin.c b/contrib/btree_gin/btree_gin.c
index e05b5c60ca..c50d68ce18 100644
--- a/contrib/btree_gin/btree_gin.c
+++ b/contrib/btree_gin/btree_gin.c
@@ -357,7 +357,7 @@ GIN_SUPPORT(bpchar, true, leftmostvalue_text, bpcharcmp)
 static Datum
 leftmostvalue_char(void)
 {
-	return CharGetDatum(SCHAR_MIN);
+	return CharGetDatum(0);
 }
 
 GIN_SUPPORT(char, false, leftmostvalue_char, btcharcmp)
diff --git a/contrib/btree_gin/expected/char.out b/contrib/btree_gin/expected/char.out
index 09e0315de0..6563546d3c 100644
--- a/contrib/btree_gin/expected/char.out
+++ b/contrib/btree_gin/expected/char.out
@@ -7,12 +7,19 @@ CREATE INDEX idx_char ON test_char USING gin (i);
 SELECT * FROM test_char WHERE i<'d'::"char" ORDER BY i;
  i 
 ---
-(0 rows)
+ a
+ b
+ c
+(3 rows)
 
 SELECT * FROM test_char WHERE i<='d'::"char" ORDER BY i;
  i 
 ---
-(0 rows)
+ a
+ b
+ c
+ d
+(4 rows)
 
 SELECT * FROM test_char WHERE i='d'::"char" ORDER BY i;
  i