diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 9c615ff..f89b7e1 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -26,8 +26,7 @@ RUN sed -i 's/^Types: deb$/Types: deb deb-src/' /etc/apt/sources.list.d/debian.s
     apt-get update && apt-get install -y --no-install-recommends \
     $(cat /tmp/packages.txt) \
     firefox-esr-l10n-${BUILD_COUNTRY} \
-    thunderbird-l10n-${BUILD_COUNTRY} \
-    && rm -rf /var/lib/apt/lists/* /tmp/packages.txt && \
+    thunderbird-l10n-${BUILD_COUNTRY} && \
     apt-get build-dep -y pulseaudio && \
     cd /tmp && \
     apt-get source pulseaudio && \
@@ -55,7 +54,8 @@ RUN sed -i 's/^Types: deb$/Types: deb deb-src/' /etc/apt/sources.list.d/debian.s
     ln -fs /usr/share/zoneinfo/${TZ} /etc/localtime && \
     dpkg-reconfigure -f noninteractive tzdata && \
     printf 'XKBMODEL="pc105"\nXKBLAYOUT="%s"\nXKBVARIANT=""\nXKBOPTIONS=""\nBACKSPACE="guess"\n' "${COUNTRY}" > /etc/default/keyboard && \
-    dpkg-reconfigure -f noninteractive keyboard-configuration
+    dpkg-reconfigure -f noninteractive keyboard-configuration && \
+    rm -rf /var/lib/apt/lists/* /tmp/packages.txt 
 
 # NEU: Systemweite statische Konfigurationen für LDAP/PAM/Sudo
 # 1. Entfernt die gefährliche %users Regel