diff --git a/htdocs/accountancy/journal/sellsjournal.php b/htdocs/accountancy/journal/sellsjournal.php
index d0c65e8e909..19bca595dd7 100644
--- a/htdocs/accountancy/journal/sellsjournal.php
+++ b/htdocs/accountancy/journal/sellsjournal.php
@@ -142,13 +142,14 @@ if ($result) {
 		// Situation invoices handling
 		$line = new FactureLigne($db);
 		$line->fetch($obj->fdid); // id of line
-		$prev_progress = $line->get_prev_progress($obj->rowid);   // id of invoice
+		$prev_progress = 0;
 		if ($obj->type == Facture::TYPE_SITUATION) {
-			// Avoid divide by 0
+		    // Avoid divide by 0
 			if ($obj->situation_percent == 0) {
 				$situation_ratio = 0;
 			} else {
-				$situation_ratio = ($obj->situation_percent - $prev_progress) / $obj->situation_percent;
+		        $prev_progress = $line->get_prev_progress($obj->rowid);   // id of invoice
+			    $situation_ratio = ($obj->situation_percent - $prev_progress) / $obj->situation_percent;
 			}
 		} else {
 			$situation_ratio = 1;
diff --git a/htdocs/compta/journal/sellsjournal.php b/htdocs/compta/journal/sellsjournal.php
index c0ebdb1aa3a..0cbd5068077 100644
--- a/htdocs/compta/journal/sellsjournal.php
+++ b/htdocs/compta/journal/sellsjournal.php
@@ -167,13 +167,14 @@ if ($result)
 		// Situation invoices handling
 		$line = new FactureLigne($db);
 		$line->fetch($obj->id);   // id of line
-		$prev_progress = $line->get_prev_progress($obj->rowid);   // id on invoice
+		$prev_progress = 0;
 		if ($obj->type==Facture::TYPE_SITUATION) {
 			// Avoid divide by 0
 			if ($obj->situation_percent == 0) { 
 				$situation_ratio = 0;
 			} else {
-				$situation_ratio = ($obj->situation_percent - $prev_progress) / $obj->situation_percent;
+		        $prev_progress = $line->get_prev_progress($obj->rowid);   // id on invoice
+			    $situation_ratio = ($obj->situation_percent - $prev_progress) / $obj->situation_percent;
 			}
 		} else {
 			$situation_ratio = 1;