diff --git a/application/models/crm/Prestudent_model.php b/application/models/crm/Prestudent_model.php
index 8b764d9d9..5afa98efe 100644
--- a/application/models/crm/Prestudent_model.php
+++ b/application/models/crm/Prestudent_model.php
@@ -362,13 +362,17 @@ class Prestudent_model extends DB_Model
 
 		$bewerberarr = $this->getBewerber($person_id, $studiensemester);
 
+		//Prio can be added when prio is null and there is only one prestudent
+		if (count($bewerberarr) === 1 && !isset($prestudent->retval[0]->priorisierung) && $change < 0)
+			return true;
+
 		if (count($bewerberarr) <= 1)
 			return false;
 
 		if (!isset($prestudent->retval[0]->priorisierung))
 		{
 			if ($change < 0)
-				return true; //null values can be changed to priority numbers, when there are other bewerber
+				return true; //null values can be changed to priority numbers (prority increase)
 			else
 				return false;
 		}
@@ -390,6 +394,7 @@ class Prestudent_model extends DB_Model
 			}
 		}
 
+		//no prio change when prestudent has max or min prio
 		if (($currprio === $priomax && $change < 0) || ($currprio === $priomin && $change > 0))
 		{
 			return false;
@@ -459,7 +464,7 @@ class Prestudent_model extends DB_Model
 
 		if (is_null($prestudent->retval[0]->priorisierung))
 		{
-			//if null value before, add lowest prio
+			//if null value, add as prio 1
 			$newprio = isset($neighbour->priorisierung) ? intval($neighbour->priorisierung) + 1 : 1;
 
 			$result = $this->PrestudentModel->update(
diff --git a/application/views/system/infocenter/zgvpruefungen.php b/application/views/system/infocenter/zgvpruefungen.php
index 02fbe974c..e3e32483e 100644
--- a/application/views/system/infocenter/zgvpruefungen.php
+++ b/application/views/system/infocenter/zgvpruefungen.php
@@ -25,8 +25,13 @@
 
 			if (!$first)
 				echo '<br/>';
+
+			if (isEmptyString($studiensemester)):
 		?>
-		<h4 class="headercolorbg text-center"><?php echo $studiensemester; ?></h4>
+				<h4 class="headercolorbg text-center">ohne Semester</h4>
+			<?php else: ?>
+				<h4 class="headercolorbg text-center"><?php echo $studiensemester; ?></h4>
+			<?php endif; ?>
 		<?php endif; ?>
 		<div class="panel panel-default">
 			<div class="panel-heading">
@@ -54,7 +59,6 @@
 						<?php
 							$changeup = isset($zgvpruefung->changeup) && $zgvpruefung->changeup === true;
 							$changedown = isset($zgvpruefung->changedown) && $zgvpruefung->changedown === true;
-							if ($numberinteressenten[$studiensemester] > 1):
 								echo ' | ' . ucfirst($this->p->t('infocenter', 'priorisierung')) . ': ';
 								echo isset($zgvpruefung->priorisierung) ? $zgvpruefung->priorisierung : $this->p->t('global', 'nichtvorhanden');
 								if ($changeup): ?>
@@ -63,7 +67,6 @@
 								<?php if ($changedown): ?>
 									<span class="fa fa-caret-down priodown" id="priodown_<?php echo $zgvpruefung->prestudent_id ?>" style="font-size: 19px; cursor: pointer;"></span>
 								<?php endif; ?>
-							<?php endif; ?>
 					<?php endif; ?>
 					</div>
 				</div>