diff --git a/papermerge/Dockerfile b/papermerge/Dockerfile
index e7b59ae86..03a8187cc 100644
--- a/papermerge/Dockerfile
+++ b/papermerge/Dockerfile
@@ -33,8 +33,8 @@ RUN \
     && sed -i 's| /config| /data/config|g' /defaults/* \
     && sed -i 's|"/config|"/data/config|g' /etc/cont-init.d/* \
     && sed -i 's|"/config|"/data/config|g' /defaults/* \
-    && sed -i 's|/config \|/data/config \|g' /etc/cont-init.d/* \
-    && sed -i 's|/config \|/data/config \|g' /defaults/*
+    && sed -i 's|/config \\|/data/config \\|g' /etc/cont-init.d/* \
+    && sed -i 's|/config \\|/data/config \\|g' /defaults/*
 
 ##################
 # 3 Install apps #