diff --git a/share/qtcreator/debugger/qttypes.py b/share/qtcreator/debugger/qttypes.py
index 1b38223c2e1..935103fde87 100644
--- a/share/qtcreator/debugger/qttypes.py
+++ b/share/qtcreator/debugger/qttypes.py
@@ -385,9 +385,9 @@ def qdump__QDateTime(d, value):
         # -     [QTime time;]
         # -      -  uint mds;
         # -  Spec spec;
-        dateSize = 8 if qtVersionAtLeast(0x050000) else 4  # Qt5: qint64, Qt4 uint
+        dateSize = 8 if d.qtVersionAtLeast(0x050000) else 4  # Qt5: qint64, Qt4 uint
         # 4 byte padding after 4 byte QAtomicInt if we are on 64 bit and QDate is 64 bit
-        refPlusPadding = 8 if qtVersionAtLeast(0x050000) and d.ptrSize() == 8 else 4
+        refPlusPadding = 8 if d.qtVersionAtLeast(0x050000) and d.ptrSize() == 8 else 4
         dateBase = base + refPlusPadding
         timeBase = dateBase + dateSize
         mds = d.extractInt(timeBase)
@@ -1031,14 +1031,14 @@ def qdump__QHostAddress(d, value):
         else:
             (ipString, scopeId, a4, pad, a6, protocol, isParsed) \
                 = d.split('{@QString}{@QString}{@quint32}I16sI{bool}', dd)
-    elif qtVersionAtLeast(0x050600):  # 5.6.0 at f3aabb42
+    elif d.qtVersionAtLeast(0x050600):  # 5.6.0 at f3aabb42
         if d.ptrSize() == 8 or d.isWindowsTarget():
             (ipString, scopeId, a4, pad, a6, protocol, isParsed) \
                 = d.split('{@QString}{@QString}{@quint32}I16sI{bool}', dd)
         else:
             (ipString, scopeId, a4, a6, protocol, isParsed) \
                 = d.split('{@QString}{@QString}{@quint32}16sI{bool}', dd)
-    elif qtVersionAtLeast(0x050000):  # 5.2.0 at 62feb088
+    elif d.qtVersionAtLeast(0x050000):  # 5.2.0 at 62feb088
         (ipString, scopeId, a4, a6, protocol, isParsed) \
             = d.split('{@QString}{@QString}{@quint32}16sI{bool}', dd)
     else:  # 4.8.7 at b05d05f