diff --git a/plugins/parsers/wavefront/element.go b/plugins/parsers/wavefront/element.go
index 859eab1f2..3b7c875a2 100644
--- a/plugins/parsers/wavefront/element.go
+++ b/plugins/parsers/wavefront/element.go
@@ -60,7 +60,7 @@ func (ep *ValueParser) parse(p *PointParser, pt *Point) error {
 		tok, lit = p.scan()
 	}
 
-	for tok != EOF && (tok == LETTER || tok == NUMBER || tok == DOT) {
+	for tok != EOF && (tok == LETTER || tok == NUMBER || tok == DOT || tok == MINUS_SIGN) {
 		p.writeBuf.WriteString(lit)
 		tok, lit = p.scan()
 	}
diff --git a/plugins/parsers/wavefront/parser_test.go b/plugins/parsers/wavefront/parser_test.go
index e7d427dd8..fed31b5f2 100644
--- a/plugins/parsers/wavefront/parser_test.go
+++ b/plugins/parsers/wavefront/parser_test.go
@@ -63,6 +63,24 @@ func TestParse(t *testing.T) {
 	assert.NoError(t, err)
 	assert.EqualValues(t, parsedMetrics[0], testMetric)
 
+	parsedMetrics, err = parser.Parse([]byte("\"test.metric\" -1.1234 1530939936 \"source\"=\"mysource\" tag2=value2"))
+	assert.NoError(t, err)
+	testMetric, err = metric.New("test.metric", map[string]string{"source": "mysource", "tag2": "value2"}, map[string]interface{}{"value": -1.1234}, time.Unix(1530939936, 0))
+	assert.NoError(t, err)
+	assert.EqualValues(t, parsedMetrics[0], testMetric)
+
+	parsedMetrics, err = parser.Parse([]byte("\"test.metric\" 1.1234e04 1530939936 \"source\"=\"mysource\" tag2=value2"))
+	assert.NoError(t, err)
+	testMetric, err = metric.New("test.metric", map[string]string{"source": "mysource", "tag2": "value2"}, map[string]interface{}{"value": 1.1234e04}, time.Unix(1530939936, 0))
+	assert.NoError(t, err)
+	assert.EqualValues(t, parsedMetrics[0], testMetric)
+
+	parsedMetrics, err = parser.Parse([]byte("\"test.metric\" 1.1234e-04 1530939936 \"source\"=\"mysource\" tag2=value2"))
+	assert.NoError(t, err)
+	testMetric, err = metric.New("test.metric", map[string]string{"source": "mysource", "tag2": "value2"}, map[string]interface{}{"value": 1.1234e-04}, time.Unix(1530939936, 0))
+	assert.NoError(t, err)
+	assert.EqualValues(t, parsedMetrics[0], testMetric)
+
 	parsedMetrics, err = parser.Parse([]byte("test.metric		 1.1234      1530939936 	source=\"mysource\"    tag2=value2     "))
 	assert.NoError(t, err)
 	testMetric, err = metric.New("test.metric", map[string]string{"source": "mysource", "tag2": "value2"}, map[string]interface{}{"value": 1.1234}, time.Unix(1530939936, 0))
@@ -201,6 +219,9 @@ func TestParseInvalid(t *testing.T) {
 	_, err = parser.Parse([]byte("test.metric 1 1530939936 tag1=val\\\"ue1"))
 	assert.Error(t, err)
 
+	_, err = parser.Parse([]byte("\"test.metric\" -1.12-34 1530939936 \"source\"=\"mysource\" tag2=value2"))
+	assert.Error(t, err)
+
 }
 
 func TestParseDefaultTags(t *testing.T) {