diff --git a/log_level_test.go b/log_level_test.go
index c038148..25a8e55 100644
--- a/log_level_test.go
+++ b/log_level_test.go
@@ -17,6 +17,7 @@ func TestLogLevel(t *testing.T) {
 		for {
 			var entry struct {
 				Message string `json:"msg"`
+				Caller  string `json:"caller"`
 			}
 			err := decoder.Decode(&entry)
 			switch err {
@@ -30,6 +31,9 @@ func TestLogLevel(t *testing.T) {
 			if entry.Message != "bar" {
 				t.Errorf("unexpected message: %s", entry.Message)
 			}
+			if entry.Caller == "" {
+				t.Errorf("no caller in log entry")
+			}
 		}
 	}()
 	logger.Debugw("foo")
diff --git a/setup.go b/setup.go
index 65f23f7..79ff0ad 100644
--- a/setup.go
+++ b/setup.go
@@ -211,7 +211,10 @@ func getLogger(name string) *zap.SugaredLogger {
 	if !ok {
 		levels[name] = zap.NewAtomicLevelAt(zapcore.Level(defaultLevel))
 		log = zap.New(loggerCore).
-			WithOptions(zap.IncreaseLevel(levels[name])).
+			WithOptions(
+				zap.IncreaseLevel(levels[name]),
+				zap.AddCaller(),
+			).
 			Named(name).
 			Sugar()