diff --git a/htdocs/install/etape1.php b/htdocs/install/etape1.php
index bacdf3823d9..51941d88a6c 100644
--- a/htdocs/install/etape1.php
+++ b/htdocs/install/etape1.php
@@ -574,6 +574,9 @@ function write_conf_file($conffile)
 	global $dolibarr_main_db_port,$dolibarr_main_db_name,$dolibarr_main_db_user,$dolibarr_main_db_pass;
 	global $dolibarr_main_db_type,$dolibarr_main_db_character_set,$dolibarr_main_db_collation,$dolibarr_main_authentication;
     global $conffile,$conffiletoshow,$conffiletoshowshort;
+    global $force_dolibarr_lib_ADODB_PATH, $force_dolibarr_lib_NUSOAP_PATH;
+    global $force_dolibarr_lib_TCPDF_PATH, $force_dolibarr_lib_FPDI_PATH;
+    global $force_dolibarr_lib_PHPEXCEL_PATH, $force_dolibarr_lib_GEOIP_PATH;
     global $force_dolibarr_lib_ODTPHP_PATH, $force_dolibarr_lib_ODTPHP_PATHTOPCLZIP;
     global $force_dolibarr_font_DOL_DEFAULT_TTF, $force_dolibarr_font_DOL_DEFAULT_TTF_BOLD;
 
@@ -659,6 +662,24 @@ function write_conf_file($conffile)
 
         // Write params to overwrites default lib path
         fputs($fp,"\n");
+        if (empty($force_dolibarr_lib_ADODB_PATH)) { fputs($fp, '#'); $force_dolibarr_lib_ADODB_PATH=''; }
+        fputs($fp, '$dolibarr_lib_ADODB_PATH=\''.$force_dolibarr_lib_ADODB_PATH.'\';');
+        fputs($fp,"\n");
+        if (empty($force_dolibarr_lib_NUSOAP_PATH)) { fputs($fp, '#'); $force_dolibarr_lib_NUSOAP_PATH=''; }
+        fputs($fp, '$dolibarr_lib_NUSOAP_PATH=\''.$force_dolibarr_lib_NUSOAP_PATH.'\';');
+        fputs($fp,"\n");
+        if (empty($force_dolibarr_lib_TCPDF_PATH)) { fputs($fp, '#'); $force_dolibarr_lib_TCPDF_PATH=''; }
+        fputs($fp, '$dolibarr_lib_TCPDF_PATH=\''.$force_dolibarr_lib_TCPDF_PATH.'\';');
+        fputs($fp,"\n");
+        if (empty($force_dolibarr_lib_FPDI_PATH)) { fputs($fp, '#'); $force_dolibarr_lib_FPDI_PATH=''; }
+        fputs($fp, '$dolibarr_lib_FPDI_PATH=\''.$force_dolibarr_lib_FPDI_PATH.'\';');
+        fputs($fp,"\n");
+        if (empty($force_dolibarr_lib_PHPEXCEL_PATH)) { fputs($fp, '#'); $force_dolibarr_lib_PHPEXCEL_PATH=''; }
+        fputs($fp, '$dolibarr_lib_PHPEXCEL_PATH=\''.$force_dolibarr_lib_PHPEXCEL_PATH.'\';');
+        fputs($fp,"\n");
+        if (empty($force_dolibarr_lib_GEOIP_PATH)) { fputs($fp, '#'); $force_dolibarr_lib_GEOIP_PATH=''; }
+        fputs($fp, '$dolibarr_lib_GEOIP_PATH=\''.$force_dolibarr_lib_GEOIP_PATH.'\';');
+        fputs($fp,"\n");
         if (empty($force_dolibarr_lib_ODTPHP_PATH)) { fputs($fp, '#'); $force_dolibarr_lib_ODTPHP_PATH=''; }
         fputs($fp, '$dolibarr_lib_ODTPHP_PATH=\''.$force_dolibarr_lib_ODTPHP_PATH.'\';');
         fputs($fp,"\n");