diff --git a/make-linux.mk b/make-linux.mk
index 385ea7507..871d0ea27 100644
--- a/make-linux.mk
+++ b/make-linux.mk
@@ -8,6 +8,7 @@ LIBS=
 
 ifeq ($(ZT_OFFICIAL_RELEASE),1)
 	ZT_AUTO_UPDATE=1
+	DEFS+=-DZT_OFFICIAL_RELEASE 
 endif
 ifeq ($(ZT_AUTO_UPDATE),1)
 	DEFS+=-DZT_AUTO_UPDATE 
diff --git a/node/SoftwareUpdater.cpp b/node/SoftwareUpdater.cpp
index 397149cfb..cb54185f6 100644
--- a/node/SoftwareUpdater.cpp
+++ b/node/SoftwareUpdater.cpp
@@ -81,7 +81,7 @@ void SoftwareUpdater::cleanOldUpdates()
 	std::map<std::string,bool> dl(Utils::listDirectory(updatesDir.c_str()));
 	for(std::map<std::string,bool>::iterator i(dl.begin());i!=dl.end();++i) {
 		if (!i->second)
-			Utils::rm(i->first.c_str());
+			Utils::rm((updatesDir + ZT_PATH_SEPARATOR_S + i->first).c_str());
 	}
 }