diff --git a/logger.go b/logger.go
index c4b562640..b8525966a 100644
--- a/logger.go
+++ b/logger.go
@@ -337,7 +337,7 @@ func getCallerFrame(skip int) (frame runtime.Frame, ok bool) {
 	const skipOffset = 2 // skip getCallerFrame and Callers
 
 	pc := make([]uintptr, 1)
-	numFrames := runtime.Callers(skip+skipOffset, pc[:])
+	numFrames := runtime.Callers(skip+skipOffset, pc)
 	if numFrames < 1 {
 		return
 	}
diff --git a/zapcore/console_encoder.go b/zapcore/console_encoder.go
index 3b68f8c0c..2307af404 100644
--- a/zapcore/console_encoder.go
+++ b/zapcore/console_encoder.go
@@ -56,7 +56,7 @@ type consoleEncoder struct {
 // encoder configuration, it will omit any element whose key is set to the empty
 // string.
 func NewConsoleEncoder(cfg EncoderConfig) Encoder {
-	if len(cfg.ConsoleSeparator) == 0 {
+	if cfg.ConsoleSeparator == "" {
 		// Use a default delimiter of '\t' for backwards compatibility
 		cfg.ConsoleSeparator = "\t"
 	}