diff --git a/PySide/QtCore/typesystem_core.xml b/PySide/QtCore/typesystem_core.xml
index 4a6374a..3946bdf 100644
--- a/PySide/QtCore/typesystem_core.xml
+++ b/PySide/QtCore/typesystem_core.xml
@@ -982,6 +982,9 @@
             <remove-argument />
             <remove-default-expression />
         </modify-argument>
+        <modify-argument index="return">
+            <replace-type modified-type="(int, bool ok)"/>
+        </modify-argument>
         <inject-code class="target" position="beginning">
             <insert-template name="fix_arg,bool*,arg" />
         </inject-code>
@@ -991,6 +994,9 @@
             <remove-argument />
             <remove-default-expression />
         </modify-argument>
+        <modify-argument index="return">
+            <replace-type modified-type="(int, bool ok)"/>
+        </modify-argument>
         <inject-code class="target" position="beginning">
             <insert-template name="fix_arg,bool*,arg" />
         </inject-code>
@@ -1000,6 +1006,9 @@
             <remove-argument />
             <remove-default-expression />
         </modify-argument>
+        <modify-argument index="return">
+            <replace-type modified-type="(float, bool ok)"/>
+        </modify-argument>
         <inject-code class="target" position="beginning">
             <insert-template name="fix_args,bool*" />
         </inject-code>
@@ -1009,6 +1018,9 @@
             <remove-argument />
             <remove-default-expression />
         </modify-argument>
+        <modify-argument index="return">
+            <replace-type modified-type="(float, bool ok)"/>
+        </modify-argument>
         <inject-code class="target" position="beginning">
             <insert-template name="fix_args,bool*" />
         </inject-code>
@@ -1017,6 +1029,9 @@
         <modify-argument index="2">
             <remove-argument />
         </modify-argument>
+        <modify-argument index="return">
+            <replace-type modified-type="(int, bool ok)"/>
+        </modify-argument>
         <inject-code class="target" position="beginning">
             <insert-template name="fix_arg,bool*,arg" />
         </inject-code>
@@ -1025,6 +1040,9 @@
         <modify-argument index="2">
             <remove-argument />
         </modify-argument>
+        <modify-argument index="return">
+            <replace-type modified-type="(int, bool ok)"/>
+        </modify-argument>
         <inject-code class="target" position="beginning">
             <insert-template name="fix_arg,bool*,arg" />
         </inject-code>
@@ -1033,6 +1051,9 @@
         <modify-argument index="2">
             <remove-argument />
         </modify-argument>
+        <modify-argument index="return">
+            <replace-type modified-type="(int, bool ok)"/>
+        </modify-argument>
         <inject-code class="target" position="beginning">
             <insert-template name="fix_arg,bool*,arg" />
         </inject-code>
@@ -1041,6 +1062,9 @@
         <modify-argument index="2">
             <remove-argument />
         </modify-argument>
+        <modify-argument index="return">
+            <replace-type modified-type="(int, bool ok)"/>
+        </modify-argument>
         <inject-code class="target" position="beginning">
             <insert-template name="fix_arg,bool*,arg" />
         </inject-code>