diff --git a/include/prestudent.class.php b/include/prestudent.class.php
index b6f511c76..c147299ba 100644
--- a/include/prestudent.class.php
+++ b/include/prestudent.class.php
@@ -42,6 +42,7 @@ class prestudent extends person
 	var $punkte;
 	var $bismelden;
 	var $anmerkung;
+	var $ext_id_prestudent;
 	
 	var $rolle_kurzbz;
 	var $studiensemester_kurzbz;
@@ -116,6 +117,7 @@ class prestudent extends person
 				$this->bismelden = ($row->bismelden=='t'?true:false);
 				$this->person_id = $row->person_id;
 				$this->anmerkung = $row->anmerkung;
+				$this->ext_id_prestudent = $row->ext_id;
 				
 				if(!person::load($row->person_id))
 					return false;
@@ -186,7 +188,7 @@ class prestudent extends person
 			       $this->addslashes($this->insertvon).",".
 			       $this->addslashes($this->updateamum).",".
 			       $this->addslashes($this->updatevon).",".
-			       $this->addslashes($this->ext_id).",".
+			       $this->addslashes($this->ext_id_prestudent).",".
 			       $this->addslashes($this->anmerkung).");";
 		}
 		else
@@ -212,7 +214,7 @@ class prestudent extends person
 			       ' bismelden='.($this->bismelden?'true':'false').",".
 			       ' updateamum='.$this->addslashes($this->updateamum).",".
 			       ' updatevon='.$this->addslashes($this->updatevon).",".
-			       ' ext_id='.$this->addslashes($this->ext_id).",".
+			       ' ext_id='.$this->addslashes($this->ext_id_prestudent).",".
 			       ' anmerkung='.$this->addslashes($this->anmerkung).
 			       " WHERE prestudent_id='".addslashes($this->prestudent_id)."';";
 		}
@@ -328,7 +330,7 @@ class prestudent extends person
 			$ps->updatevon = $row->updatevon;
 			$ps->insertamum = $row->insertamum;
 			$ps->insertvon = $row->insertvon;
-			$ps->ext_id = $row->ext_id;
+			$ps->ext_id_prestudent = $row->ext_id_prestudent;
 			$this->result[]=$ps;
 			$this->num_rows++; 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 		}	
@@ -408,6 +410,7 @@ class prestudent extends person
 				$this->insertvon = $row->insertvon;
 				$this->updateamum = $row->updateamum;
 				$this->updatevon = $row->updatevon;
+				$this->ext_id_prestudent = $row->ext_id;
 			}
 			return true;
 		}
@@ -613,7 +616,7 @@ class prestudent extends person
 			       $this->addslashes($this->insertvon).",".
 			       $this->addslashes($this->updateamum).",".
 			       $this->addslashes($this->updatevon).",".
-			       $this->addslashes($this->ext_id).");";
+			       $this->addslashes($this->ext_id_prestudent).");";
 		}
 		else
 		{			
@@ -672,7 +675,7 @@ class prestudent extends person
 							$this->addslashes($this->insertvon).','.
 							$this->addslashes($this->updateamum).','.
 							$this->addslashes($this->updatevon).','.
-							$this->addslashes($this->ext_id).');';
+							$this->addslashes($this->ext_id_prestudent).');';
 			if($log->save(true))
 			{
 						
diff --git a/rdf/student.rdf.php b/rdf/student.rdf.php
index cdf76290f..ff07b1b93 100644
--- a/rdf/student.rdf.php
+++ b/rdf/student.rdf.php
@@ -183,7 +183,7 @@ if($xmlformat=='rdf')
 				draw_prestudent($prestd);
 			}
 	}
-	elseif(in_array($typ, array('prestudent', 'interessent','bewerber','aufgenommen',
+	elseif(in_array($typ, array('prestudent', 'interessenten','bewerber','aufgenommen',
 	                      'warteliste','absage','zgv','reihungstestangemeldet',
 	                      'reihungstestnichtangemeldet')))
 	{
diff --git a/vilesci/personen/import/interessentenimport.php b/vilesci/personen/import/interessentenimport.php
index f8528bb3c..e1e19333a 100644
--- a/vilesci/personen/import/interessentenimport.php
+++ b/vilesci/personen/import/interessentenimport.php
@@ -380,6 +380,7 @@ echo '<tr><td>EMail</td><td><input type="text" id="email" maxlength="128" name="
 echo '<tr><td>Telefon</td><td><input type="text" id="telefon" maxlength="128" name="telefon" value="'.$telefon.'" /></td></tr>';
 echo '<tr><td>Mobil</td><td><input type="text" id="mobil" maxlength="128" name="mobil" value="'.$mobil.'" /></td></tr>';
 echo '<tr><td>Letzte Ausbildung</td><td><SELECT id="letzteausbildung" name="letzteausbildung">';
+echo '<OPTION value="" '.($letzteausbildung==''?'selected':'').'>-- keine Auswahl --</OPTION>';
 $qry = "SELECT * FROM bis.tbl_ausbildung ORDER BY ausbildungcode";
 if($result = pg_query($conn, $qry))
 {