diff --git a/plugin/storage/es/mappings/mapping.go b/plugin/storage/es/mappings/mapping.go
index 41b5967f103..41666f7de54 100644
--- a/plugin/storage/es/mappings/mapping.go
+++ b/plugin/storage/es/mappings/mapping.go
@@ -107,14 +107,14 @@ func MappingTypeFromString(val string) (MappingType, error) {
 // GetMapping returns the rendered mapping based on elasticsearch version
 func (mb *MappingBuilder) GetMapping(mappingType MappingType) (string, error) {
 	templateOpts := mb.getMappingTemplateOptions(mappingType)
-	var version string
+	var version int
 	switch mb.EsVersion {
 	case 8:
-		version = "-8"
+		version = 8
 	case 7:
-		version = "-7"
+		version = 7
 	default:
-		version = "-6"
+		version = 6
 	}
 
 	return mb.renderMapping(fmt.Sprintf("%s-%d.json", mappingType, version), templateOpts)
diff --git a/plugin/storage/es/mappings/mapping_test.go b/plugin/storage/es/mappings/mapping_test.go
index 5a89d03c560..f3b23ad3822 100644
--- a/plugin/storage/es/mappings/mapping_test.go
+++ b/plugin/storage/es/mappings/mapping_test.go
@@ -41,6 +41,8 @@ func TestMappingBuilderGetMapping(t *testing.T) {
 		{mapping: DependenciesMapping, esVersion: 6},
 	}
 	for _, tt := range tests {
+		templateName := tt.mapping.String()
+
 		t.Run(tt.mapping.String(), func(t *testing.T) {
 			defaultOpts := func(p int64) config.IndexOptions {
 				return config.IndexOptions{
@@ -162,7 +164,7 @@ func TestMappingBuilderFixMapping(t *testing.T) {
 				UseILM:        true,
 				ILMPolicyName: "jaeger-test-policy",
 			}
-			_, err := mappingBuilder.renderMapping("test", mappingBuilder.getMappingTemplateOptions("test"))
+			_, err := mappingBuilder.renderMapping("test", mappingBuilder.getMappingTemplateOptions(SpanMapping))
 			if test.err != "" {
 				require.EqualError(t, err, test.err)
 			} else {