diff --git a/libs/gui/pref/preferencepagegridcheck.ui b/libs/gui/pref/preferencepagegridcheck.ui
index c34297bd5..97f177e29 100644
--- a/libs/gui/pref/preferencepagegridcheck.ui
+++ b/libs/gui/pref/preferencepagegridcheck.ui
@@ -88,6 +88,9 @@
           <property name="maximum">
            <double>10.000000000000000</double>
           </property>
+          <property name="singleStep">
+           <double>0.100000000000000</double>
+          </property>
           <property name="value">
            <double>2.000000000000000</double>
           </property>
@@ -174,11 +177,14 @@
              </size>
             </property>
             <property name="minimum">
-             <double>1.200000000000000</double>
+             <double>1.010000000000000</double>
             </property>
             <property name="maximum">
              <double>10.000000000000000</double>
             </property>
+            <property name="singleStep">
+             <double>0.100000000000000</double>
+            </property>
             <property name="value">
              <double>2.000000000000000</double>
             </property>
@@ -200,11 +206,14 @@
              </size>
             </property>
             <property name="minimum">
-             <double>1.200000000000000</double>
+             <double>1.010000000000000</double>
             </property>
             <property name="maximum">
              <double>10.000000000000000</double>
             </property>
+            <property name="singleStep">
+             <double>0.100000000000000</double>
+            </property>
             <property name="value">
              <double>2.000000000000000</double>
             </property>