diff --git a/src/preferences.glade b/src/preferences.glade
index 81efab87d..ac04d5495 100644
--- a/src/preferences.glade
+++ b/src/preferences.glade
@@ -2310,7 +2310,7 @@
 			  <child>
 			    <widget class="GtkLabel" id="label132">
 			      <property name="visible">True</property>
-			      <property name="label" translatable="yes">&lt;b&gt;Drag and drop from and external source&lt;/b&gt;</property>
+			      <property name="label" translatable="yes">&lt;b&gt;Drag and drop from an external source&lt;/b&gt;</property>
 			      <property name="use_underline">False</property>
 			      <property name="use_markup">True</property>
 			      <property name="justify">GTK_JUSTIFY_LEFT</property>