diff --git a/zapcore/core.go b/zapcore/core.go
index c8e59eb3d..5daf6fdf7 100644
--- a/zapcore/core.go
+++ b/zapcore/core.go
@@ -95,8 +95,9 @@ func (c *ioCore) Write(ent Entry, fields []Field) error {
 		return err
 	}
 	if ent.Level > ErrorLevel {
-		// Since we may be crashing the program, sync the output.
-		return c.Sync()
+		// Since we may be crashing the program, sync the output. Ignore Sync
+		// errors, pending a clean solution to issue #370.
+		c.Sync()
 	}
 	return nil
 }