diff --git a/ecslogs/handler.go b/ecslogs/handler.go
index 8fed235..4b79fb0 100644
--- a/ecslogs/handler.go
+++ b/ecslogs/handler.go
@@ -42,7 +42,10 @@ func (h *Handler) HandleEvent(e *events.Event) {
 	f.buffer.Reset()
 
 	f.level = "INFO"
-	f.time = e.Time
+	// It's not super realistic to expect more precise timestamps on a Unix
+	// server, and the additional fidelity doesn't help much either vs.
+	// cluttering up the log line
+	f.time = e.Time.Round(time.Microsecond)
 	f.message = e.Message
 	f.data.args = e.Args
 	f.info.Source = e.Source
@@ -180,14 +183,14 @@ func (st stackTrace) MarshalJSON() ([]byte, error) {
 		pc := uintptr(frame)
 		file, line := events.SourceForPC(pc)
 		i++
-		fmt.Fprintf(b, `"%s:%d:%s"`, file, line, funcName(file, pc))
+		fmt.Fprintf(b, `"%s:%d:%s"`, file, line, funcName(pc))
 	}
 
 	b.WriteByte(']')
 	return b.Bytes(), nil
 }
 
-func funcName(file string, pc uintptr) string {
+func funcName(pc uintptr) string {
 	callers := [1]uintptr{pc}
 	frames := runtime.CallersFrames(callers[:])
 	f, _ := frames.Next()
diff --git a/ecslogs/handler_test.go b/ecslogs/handler_test.go
index dce4118..e455f36 100644
--- a/ecslogs/handler_test.go
+++ b/ecslogs/handler_test.go
@@ -3,7 +3,6 @@ package ecslogs
 import (
 	"bytes"
 	"io"
-	"io/ioutil"
 	"testing"
 	"time"
 
@@ -18,7 +17,7 @@ func TestHandler(t *testing.T) {
 		Message: "Hello Luke!",
 		Source:  "github.com/segmentio/events/ecslogs/handler_test.go:19",
 		Args:    events.Args{{Name: "name", Value: "Luke"}, {Name: "from", Value: "Han"}, {Name: "error", Value: io.EOF}},
-		Time:    time.Date(2017, 1, 1, 23, 42, 0, 123000000, time.UTC),
+		Time:    time.Date(2017, 1, 1, 23, 42, 0, 123456789, time.UTC),
 		Debug:   true,
 	}
 
@@ -26,15 +25,15 @@ func TestHandler(t *testing.T) {
 		h.HandleEvent(e)
 	}
 
-	const ref = `{"level":"ERROR","time":"2017-01-01T23:42:00.123Z","info":{"source":"github.com/segmentio/events/ecslogs/handler_test.go:19","errors":[{"type":"*errors.errorString","error":"EOF"}]},"data":{"name":"Luke","from":"Han"},"message":"Hello Luke!"}
-{"level":"ERROR","time":"2017-01-01T23:42:00.123Z","info":{"source":"github.com/segmentio/events/ecslogs/handler_test.go:19","errors":[{"type":"*errors.errorString","error":"EOF"}]},"data":{"name":"Luke","from":"Han"},"message":"Hello Luke!"}
-{"level":"ERROR","time":"2017-01-01T23:42:00.123Z","info":{"source":"github.com/segmentio/events/ecslogs/handler_test.go:19","errors":[{"type":"*errors.errorString","error":"EOF"}]},"data":{"name":"Luke","from":"Han"},"message":"Hello Luke!"}
+	const ref = `{"level":"ERROR","time":"2017-01-01T23:42:00.123457Z","info":{"source":"github.com/segmentio/events/ecslogs/handler_test.go:19","errors":[{"type":"*errors.errorString","error":"EOF"}]},"data":{"name":"Luke","from":"Han"},"message":"Hello Luke!"}
+{"level":"ERROR","time":"2017-01-01T23:42:00.123457Z","info":{"source":"github.com/segmentio/events/ecslogs/handler_test.go:19","errors":[{"type":"*errors.errorString","error":"EOF"}]},"data":{"name":"Luke","from":"Han"},"message":"Hello Luke!"}
+{"level":"ERROR","time":"2017-01-01T23:42:00.123457Z","info":{"source":"github.com/segmentio/events/ecslogs/handler_test.go:19","errors":[{"type":"*errors.errorString","error":"EOF"}]},"data":{"name":"Luke","from":"Han"},"message":"Hello Luke!"}
 `
 
 	if s := b.String(); s != ref {
 		t.Error("bad event:")
-		t.Log("expected:", ref)
-		t.Log("found:   ", s)
+		t.Logf("expected:%q", ref)
+		t.Logf("found   :%q", s)
 	}
 
 	t.Run("stack", func(t *testing.T) {
@@ -43,7 +42,7 @@ func TestHandler(t *testing.T) {
 		b.Reset()
 		h.HandleEvent(e)
 
-		if s := b.String(); s != `{"level":"ERROR","time":"2017-01-01T23:42:00.123Z","info":{"source":"github.com/segmentio/events/ecslogs/handler_test.go:19","errors":[{"type":"*errors.errorString","error":"EOF","stack":["github.com/segmentio/events/ecslogs/handler_test.go:41:ecslogs.TestHandler.func1","testing/testing.go:746:testing.tRunner","runtime/asm_amd64.s:2337:runtime.goexit"]}]},"data":{"name":"Luke","from":"Han"},"message":"Hello Luke!"}
+		if s := b.String(); s != `{"level":"ERROR","time":"2017-01-01T23:42:00.123457Z","info":{"source":"github.com/segmentio/events/ecslogs/handler_test.go:19","errors":[{"type":"*errors.errorString","error":"EOF","stack":["github.com/segmentio/events/ecslogs/handler_test.go:41:ecslogs.TestHandler.func1","testing/testing.go:746:testing.tRunner","runtime/asm_amd64.s:2337:runtime.goexit"]}]},"data":{"name":"Luke","from":"Han"},"message":"Hello Luke!"}
 ` {
 			// This test is sensitive, it may break if the Go version changes or
 			// if this file is edited (because the number of lines may not be
@@ -55,12 +54,12 @@ func TestHandler(t *testing.T) {
 }
 
 func BenchmarkHandler(b *testing.B) {
-	h := NewHandler(ioutil.Discard)
+	h := NewHandler(io.Discard)
 	e := &events.Event{
 		Message: "Hello Luke!",
 		Source:  "github.com/segmentio/events/ecslogs/handler_test.go:19",
 		Args:    events.Args{{Name: "name", Value: "Luke"}, {Name: "from", Value: "Han"}},
-		Time:    time.Date(2017, 1, 1, 23, 42, 0, 123000000, time.UTC),
+		Time:    time.Date(2017, 1, 1, 23, 42, 0, 123456789, time.UTC),
 		Debug:   true,
 	}