diff --git a/plugins/check_disk.cpp b/plugins/check_disk.cpp
index d592b0394..d410a02ec 100644
--- a/plugins/check_disk.cpp
+++ b/plugins/check_disk.cpp
@@ -306,7 +306,8 @@ int check_drives(vector<drive>& vDrives)
 			szVolumePathNames = reinterpret_cast<wchar_t*>(new WCHAR[dwVolumePathNamesLen]);
 
 		}
-		wcout << szVolumePathNames << L"\"" << endl;
+		if (debug)
+			wcout << szVolumePathNames << L"\"" << endl;
 
 		//.insert() does the dublicate checking
 		sDrives.insert(wstring(szVolumePathNames));