diff --git a/htdocs/core/class/translate.class.php b/htdocs/core/class/translate.class.php
index 648c13bc1e6..8caa7675c08 100644
--- a/htdocs/core/class/translate.class.php
+++ b/htdocs/core/class/translate.class.php
@@ -100,10 +100,10 @@ class Translate {
 		// We redefine $srclang
 		$langpart=explode("_",$codetouse);
 		//print "Short before _ : ".$langpart[0].'/ Short after _ : '.$langpart[1].'<br>';
-        // Array to convert short lang code into other long code.
-        $longforshort=array('ar'=>'ar_SA', 'el'=>'el_GR', 'ca'=>'ca_ES', 'en'=>'en_US', 'nb'=>'nb_NO', 'no'=>'nb_NO');
 		if (isset($langpart[1]))	// If it's for a codetouse that is a long code xx_YY
 		{
+			// Array force long code from first part, even if long code is defined
+			$longforshort=array('ar'=>'ar_SA');
 			if (isset($longforshort[strtolower($langpart[0])])) $srclang=$longforshort[strtolower($langpart[0])];
 			else {
 				$srclang=strtolower($langpart[0])."_".strtoupper($langpart[1]);
@@ -112,6 +112,8 @@ class Translate {
 			}
 		}
 		else {						// If it's for a codetouse that is a short code xx
+    	    // Array to convert short lang code into long code.
+	        $longforshort=array('ar'=>'ar_SA', 'el'=>'el_GR', 'ca'=>'ca_ES', 'en'=>'en_US', 'nb'=>'nb_NO', 'no'=>'nb_NO');
 			if (isset($longforshort[strtolower($langpart[0])])) $srclang=$longforshort[strtolower($langpart[0])];
 			else $srclang=strtolower($langpart[0])."_".strtoupper($langpart[0]);
 		}