diff --git a/macos/errors.cpp b/macos/errors.cpp
index 2f0e617..bc63625 100644
--- a/macos/errors.cpp
+++ b/macos/errors.cpp
@@ -933,6 +933,8 @@ namespace MacOS {
 			case EDQUOT: return dskFulErr;
 			case ENOSPC: return dskFulErr;
 
+			case ENOTEMPTY: return fBsyErr;
+
 
 			default:
 				return ioErr;