diff --git a/build/deb/postinst b/build/deb/postinst
index 7df40f3e33c6a252b52b84d59c60d7915b1386a2..dbfb12557d354f586dac06ed98df426e27981493 100644
--- a/build/deb/postinst
+++ b/build/deb/postinst
@@ -56,6 +56,9 @@ config="/etc/dolibarr/conf.php"
 
 case "$1" in
 	configure)
+	
+		# Remove lock file
+		rm -f $docdir/install.lock
 
         # Create document directory for uploaded data files
         mkdir -p $docdir
diff --git a/build/rpm/dolibarr.spec b/build/rpm/dolibarr.spec
index d6fcc0de06c107abb1185eb185b0af603ddcbec3..6829d98e847a7f952cc3900d909e954d623aa28e 100644
--- a/build/rpm/dolibarr.spec
+++ b/build/rpm/dolibarr.spec
@@ -183,6 +183,8 @@ if [ -d %{_sysconfdir}/apache2/conf.d -a `grep ^www-data /etc/passwd | wc -l` -g
 fi
 echo OS detected: $os
 
+# Remove lock file
+%{__rm} -f $docdir/install.lock
 
 # Create empty directory for uploaded files and generated documents 
 echo Create document directory $docdir