diff --git a/.gitignore b/.gitignore
index 2122739..3d40f72 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,8 @@
 .idea
 t
-*.json
-*.tsv
-*.csv
+*t.json
+*t.tsv
+*t.csv
 prof
 .vscode
 200k-lines.txt
diff --git a/ent/matcher/match.go b/ent/matcher/match.go
index 6aba0b0..2be4382 100644
--- a/ent/matcher/match.go
+++ b/ent/matcher/match.go
@@ -1,6 +1,7 @@
 package matcher
 
 import (
+	"fmt"
 	"strings"
 
 	"github.com/gnames/gndiff/ent/record"
@@ -14,6 +15,7 @@ func (m *matcher) Match(rec record.Record) ([]record.Record, error) {
 	}
 
 	res, err = m.MatchFuzzy(rec.Canonical.Simple, rec.Canonical.Stemmed)
+	fmt.Printf("FUZZY: %#v\n\n", res)
 	if len(res) > 0 || err != nil {
 		return res, err
 	}
diff --git a/gndiff_test.go b/gndiff_test.go
index a1dbec7..bf414d5 100644
--- a/gndiff_test.go
+++ b/gndiff_test.go
@@ -1,6 +1,7 @@
 package gndiff_test
 
 import (
+	"fmt"
 	"path/filepath"
 	"testing"
 
@@ -40,6 +41,35 @@ func TestScore(t *testing.T) {
 	assert.Equal("Abelia forrestii var. gracilenta (W.W.Sm.) Landrein", abelia.ReferenceRecords[0].Name)
 }
 
+// Issue #19: duplicated results for similar names
+func TestNoDuplicates(t *testing.T) {
+	assert := assert.New(t)
+	cfg := config.New()
+	ing := ingestio.New(cfg)
+
+	src := filepath.Join(path, "issue-19-src.csv")
+	recSrc, err := ing.Records(src)
+	assert.Nil(err)
+
+	ref := filepath.Join(path, "issue-19-ref.csv")
+	recRef, err := ing.Records(ref)
+	assert.Nil(err)
+
+	gnd := gndiff.New(cfg)
+	res, err := gnd.Compare(recSrc, recRef)
+	assert.Nil(err)
+	fmt.Printf("SRC: %#v\n\n", len(recSrc))
+	for _, v := range res.Matches[0].ReferenceRecords {
+		fmt.Printf("RES: %#v\n\n", v)
+	}
+	assert.Equal(len(recSrc), len(res.Matches))
+
+	obione := res.Matches[0]
+	abelia := res.Matches[1]
+	bubo := res.Matches[2]
+	_, _, _ = obione, abelia, bubo
+}
+
 func TestGNdiff(t *testing.T) {
 	cfg := config.New()
 	ing := ingestio.New(cfg)
diff --git a/go.mod b/go.mod
index 2ecff7c..154b8a8 100644
--- a/go.mod
+++ b/go.mod
@@ -6,7 +6,7 @@ require (
 	github.com/devopsfaith/bloomfilter v1.4.0
 	github.com/dgraph-io/badger/v2 v2.2007.4
 	github.com/dvirsky/levenshtein v0.0.0-20200624034316-59b26b61c3c8
-	github.com/gnames/gnames v1.0.0-RC1
+	github.com/gnames/gnames v1.0.0-RC2
 	github.com/gnames/gnfmt v0.2.0
 	github.com/gnames/gnlib v0.14.0
 	github.com/gnames/gnparser v1.6.5
diff --git a/go.sum b/go.sum
index db02cf8..8d54db7 100644
--- a/go.sum
+++ b/go.sum
@@ -202,8 +202,8 @@ github.com/georgysavva/scany v0.3.0/go.mod h1:q8QyrfXjmBk9iJD00igd4lbkAKEXAH/zIY
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/gin-contrib/sse v0.0.0-20170109093832-22d885f9ecc7/go.mod h1:VJ0WA2NBN22VlZ2dKZQPAPnyWw5XTlK1KymzLKsr59s=
 github.com/gin-gonic/gin v1.1.5-0.20170702092826-d459835d2b07/go.mod h1:7cKuhb5qV2ggCFctp2fJQ+ErvciLZrIeoOSOm6mUr7Y=
-github.com/gnames/gnames v1.0.0-RC1 h1:lf/+5rBUczUYGDo9LBgwT9Xykkc0hdQqlvldlaKrHTo=
-github.com/gnames/gnames v1.0.0-RC1/go.mod h1:RT99vAA83z/qxuVp9rH13YWtZk4hOIZ1N9fo5vWioYI=
+github.com/gnames/gnames v1.0.0-RC2 h1:y6fc8ROHnOTN0zXPnkjvdCEhiBC0zvIFz67vEbUHCTk=
+github.com/gnames/gnames v1.0.0-RC2/go.mod h1:RT99vAA83z/qxuVp9rH13YWtZk4hOIZ1N9fo5vWioYI=
 github.com/gnames/gnfmt v0.1.0/go.mod h1:WG9c3CoiVrGc1SDsxLk7zjmv2B4UIzI00m4K5Khc/d0=
 github.com/gnames/gnfmt v0.2.0 h1:CjE1HxdqyTwufua5wMCdILWnCsCfRiHe5G4TgxR8aAI=
 github.com/gnames/gnfmt v0.2.0/go.mod h1:0Aog37s1ZNpmUwVQOf+lnx0SQq8r2EvfE/pLYGiJlJQ=
diff --git a/testdata/issue-19-ref.csv b/testdata/issue-19-ref.csv
new file mode 100644
index 0000000..1f36190
--- /dev/null
+++ b/testdata/issue-19-ref.csv
@@ -0,0 +1,3 @@
+TaxonID,Family,ScientificName
+1001,,Obione maritima (Alfredo) Pacino var. maritima
+1002,,Obione maritima (Alfredo) Pacino subsp. maritima
\ No newline at end of file
diff --git a/testdata/issue-19-src.csv b/testdata/issue-19-src.csv
new file mode 100644
index 0000000..13954e7
--- /dev/null
+++ b/testdata/issue-19-src.csv
@@ -0,0 +1,4 @@
+ScientificName
+Obione maritima (Alfredo) Pacino var. maritimaa
+Obione maritima (Alfredo) Di'Stefano subsp. maritima
+Quercus lamarkensis
\ No newline at end of file