diff --git a/gen/decoder.go b/gen/decoder.go
index 9438568..2de39cb 100644
--- a/gen/decoder.go
+++ b/gen/decoder.go
@@ -156,7 +156,7 @@ func (g *Generator) genTypeDecoderNoCheck(t reflect.Type, out string, tags field
 			fmt.Fprintln(g.out, ws+"  for !in.IsDelim(']') {")
 			fmt.Fprintln(g.out, ws+"    var "+tmpVar+" "+g.getType(elem))
 
-			if err := g.genTypeDecoder(elem, tmpVar, tags, indent+2); err != nil {
+			if err := g.genTypeDecoder(elem, tmpVar, fieldTags{}, indent+2); err != nil {
 				return err
 			}
 
@@ -190,7 +190,7 @@ func (g *Generator) genTypeDecoderNoCheck(t reflect.Type, out string, tags field
 			fmt.Fprintln(g.out, ws+"  for !in.IsDelim(']') {")
 			fmt.Fprintln(g.out, ws+"    if "+iterVar+" < "+fmt.Sprint(length)+" {")
 
-			if err := g.genTypeDecoder(elem, "("+out+")["+iterVar+"]", tags, indent+3); err != nil {
+			if err := g.genTypeDecoder(elem, "("+out+")["+iterVar+"]", fieldTags{}, indent+3); err != nil {
 				return err
 			}
 
@@ -224,7 +224,7 @@ func (g *Generator) genTypeDecoderNoCheck(t reflect.Type, out string, tags field
 		fmt.Fprintln(g.out, ws+"    "+out+" = new("+g.getType(t.Elem())+")")
 		fmt.Fprintln(g.out, ws+"  }")
 
-		if err := g.genTypeDecoder(t.Elem(), "*"+out, tags, indent+1); err != nil {
+		if err := g.genTypeDecoder(t.Elem(), "*"+out, fieldTags{}, indent+1); err != nil {
 			return err
 		}
 
@@ -265,7 +265,7 @@ func (g *Generator) genTypeDecoderNoCheck(t reflect.Type, out string, tags field
 			fmt.Fprintln(g.out, ws+"    key := "+g.getType(key)+"("+keyDec+")")
 		} else {
 			fmt.Fprintln(g.out, ws+"    var key "+g.getType(key))
-			if err := g.genTypeDecoder(key, "key", tags, indent+2); err != nil {
+			if err := g.genTypeDecoder(key, "key", fieldTags{}, indent+2); err != nil {
 				return err
 			}
 		}
@@ -273,7 +273,7 @@ func (g *Generator) genTypeDecoderNoCheck(t reflect.Type, out string, tags field
 		fmt.Fprintln(g.out, ws+"    in.WantColon()")
 		fmt.Fprintln(g.out, ws+"    var "+tmpVar+" "+g.getType(elem))
 
-		if err := g.genTypeDecoder(elem, tmpVar, tags, indent+2); err != nil {
+		if err := g.genTypeDecoder(elem, tmpVar, fieldTags{}, indent+2); err != nil {
 			return err
 		}
 
diff --git a/tests/basic_test.go b/tests/basic_test.go
index 938add0..bbde968 100644
--- a/tests/basic_test.go
+++ b/tests/basic_test.go
@@ -35,6 +35,7 @@ var testCases = []struct {
 	{&arrayValue, arrayString},
 	{&mapsValue, mapsString},
 	{&deepNestValue, deepNestString},
+	{&deepNestOptionalValue, deepNestOptionalString},
 	{&IntsValue, IntsString},
 	{&mapStringStringValue, mapStringStringString},
 	{&namedTypeValue, namedTypeValueString},
diff --git a/tests/data.go b/tests/data.go
index 5e6c610..e5a680c 100644
--- a/tests/data.go
+++ b/tests/data.go
@@ -659,6 +659,20 @@ var deepNestString = `{` +
 	`"NamedStringSlice":["value4","value5"]` +
 	`}`
 
+type DeepNestOptional struct {
+	MapSlice []map[Str]Str `json:",omitempty"`
+}
+
+var deepNestOptionalValue = DeepNestOptional{
+	MapSlice: []map[Str]Str{map[Str]Str{}},
+}
+
+var deepNestOptionalString = `{` +
+	`"MapSlice":[` +
+	`{}` +
+	`]` +
+	`}`
+
 //easyjson:json
 type Ints []int