diff --git a/src/frontends/qt4/ui/LaTeXUi.ui b/src/frontends/qt4/ui/LaTeXUi.ui
index 7d3e7e9b96..92a7603492 100644
--- a/src/frontends/qt4/ui/LaTeXUi.ui
+++ b/src/frontends/qt4/ui/LaTeXUi.ui
@@ -166,7 +166,11 @@
     </widget>
    </item>
    <item row="0" column="1" colspan="2" >
-    <widget class="QComboBox" name="classCO" />
+    <widget class="QComboBox" name="classCO" >
+     <property name="maxVisibleItems" >
+      <number>20</number>
+     </property>
+    </widget>
      <property name="sizePolicy" >
       <sizepolicy>
        <hsizetype>7</hsizetype>
diff --git a/src/frontends/qt4/ui/LanguageUi.ui b/src/frontends/qt4/ui/LanguageUi.ui
index 92f052573d..61f1a500cb 100644
--- a/src/frontends/qt4/ui/LanguageUi.ui
+++ b/src/frontends/qt4/ui/LanguageUi.ui
@@ -94,7 +94,11 @@
     </spacer>
    </item>
    <item row="0" column="1" >
-    <widget class="QComboBox" name="languageCO" />
+    <widget class="QComboBox" name="languageCO" >
+     <property name="maxVisibleItems" >
+      <number>20</number>
+     </property>
+    </widget>
    </item>
    <item row="1" column="1" >
     <widget class="QComboBox" name="quoteStyleCO" />
diff --git a/src/frontends/qt4/ui/PageLayoutUi.ui b/src/frontends/qt4/ui/PageLayoutUi.ui
index 45786d63bc..e35105b264 100644
--- a/src/frontends/qt4/ui/PageLayoutUi.ui
+++ b/src/frontends/qt4/ui/PageLayoutUi.ui
@@ -102,6 +102,9 @@
      <property name="toolTip" >
       <string>Choose a particular paper size, or set your own with "Custom"</string>
      </property>
+     <property name="maxVisibleItems" >
+      <number>20</number>
+     </property>
     </widget>
    </item>
    <item row="7" column="1" colspan="2" >
diff --git a/src/frontends/qt4/ui/PrefFileformatsUi.ui b/src/frontends/qt4/ui/PrefFileformatsUi.ui
index 910820fdaa..9b4e305c81 100644
--- a/src/frontends/qt4/ui/PrefFileformatsUi.ui
+++ b/src/frontends/qt4/ui/PrefFileformatsUi.ui
@@ -68,6 +68,9 @@
      <property name="editable" >
       <bool>true</bool>
      </property>
+     <property name="maxVisibleItems" >
+      <number>20</number>
+     </property>
      <property name="insertPolicy" >
       <enum>QComboBox::InsertAtCurrent</enum>
      </property>
diff --git a/src/frontends/qt4/ui/PrefLanguageUi.ui b/src/frontends/qt4/ui/PrefLanguageUi.ui
index 816f068fad..b816b4b871 100644
--- a/src/frontends/qt4/ui/PrefLanguageUi.ui
+++ b/src/frontends/qt4/ui/PrefLanguageUi.ui
@@ -27,7 +27,11 @@
     </widget>
    </item>
    <item row="0" column="1" >
-    <widget class="QComboBox" name="defaultLanguageCO" />
+    <widget class="QComboBox" name="defaultLanguageCO" >
+     <property name="maxVisibleItems" >
+      <number>20</number>
+     </property>
+    </widget>
    </item>
    <item row="2" column="1" >
     <widget class="QLineEdit" name="startCommandED" />
diff --git a/src/frontends/qt4/ui/PrefScreenFontsUi.ui b/src/frontends/qt4/ui/PrefScreenFontsUi.ui
index abe46a9cc6..bec84f6611 100644
--- a/src/frontends/qt4/ui/PrefScreenFontsUi.ui
+++ b/src/frontends/qt4/ui/PrefScreenFontsUi.ui
@@ -37,6 +37,9 @@
        </property>
        <item row="1" column="1" >
         <widget class="QComboBox" name="screenSansCO" >
+         <property name="maxVisibleItems" >
+          <number>20</number>
+         </property>
          <property name="duplicatesEnabled" >
           <bool>false</bool>
          </property>
@@ -90,6 +93,9 @@
        </item>
        <item row="0" column="1" >
         <widget class="QComboBox" name="screenRomanCO" >
+         <property name="maxVisibleItems" >
+          <number>20</number>
+         </property>
          <property name="duplicatesEnabled" >
           <bool>false</bool>
          </property>
@@ -129,6 +135,9 @@
        </item>
        <item row="2" column="1" >
         <widget class="QComboBox" name="screenTypewriterCO" >
+         <property name="maxVisibleItems" >
+          <number>20</number>
+         </property>
          <property name="duplicatesEnabled" >
           <bool>false</bool>
          </property>