diff --git a/installer/portable/update-filebot.sh b/installer/portable/update-filebot.sh
index 6967bdfb..542b594e 100755
--- a/installer/portable/update-filebot.sh
+++ b/installer/portable/update-filebot.sh
@@ -58,7 +58,7 @@ fi
 GPG_HOME="$APP_ROOT/.gpg"
 JAR_XZ_FILE="$APP_ROOT/FileBot.jar.xz"
 
-if [ -d "$GPG_HOME" ]; then
+if [ ! -d "$GPG_HOME" ]; then
 	mkdir -p -m 700 "$GPG_HOME" && gpg --homedir "$GPG_HOME" --import "$APP_ROOT/filebot.pub"
 fi