diff --git a/Dockerfile b/Dockerfile
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,9 +29,8 @@
     gcc libc-dev make pkg-config nginx-full \
     runit nano less tmux wget git locales \
     $PHP_BUILD_DEPS $PHP_EXTRA_BUILD_DEPS \
-    --no-install-recommends && rm -r /var/lib/apt/lists/*
-
-RUN dpkg-reconfigure locales 
+    --no-install-recommends && rm -r /var/lib/apt/lists/* \
+    && dpkg-reconfigure locales
 
 RUN gpg --keyserver pool.sks-keyservers.net --recv-keys 6E4F6AB321FDC07F2C332E3AC2BF0BC433CFC8B3 0BD78B5F97500D450838F95DFE857D9A90D90EC1 \
 	&& mkdir -p $PHP_INI_DIR/conf.d \
diff --git a/novolume/Dockerfile b/novolume/Dockerfile
--- a/novolume/Dockerfile
+++ b/novolume/Dockerfile
@@ -29,9 +29,8 @@
     gcc libc-dev make pkg-config nginx-full \
     runit nano less tmux wget git locales \
     $PHP_BUILD_DEPS $PHP_EXTRA_BUILD_DEPS \
-    --no-install-recommends && rm -r /var/lib/apt/lists/*
-
-RUN dpkg-reconfigure locales
+    --no-install-recommends && rm -r /var/lib/apt/lists/* \
+    && dpkg-reconfigure locales
 
 RUN gpg --keyserver pool.sks-keyservers.net --recv-keys 6E4F6AB321FDC07F2C332E3AC2BF0BC433CFC8B3 0BD78B5F97500D450838F95DFE857D9A90D90EC1 \
 	&& mkdir -p $PHP_INI_DIR/conf.d \