diff --git a/pyqtgraph/parametertree/parameterTypes.py b/pyqtgraph/parametertree/parameterTypes.py
index e8b55db7..e0df6be7 100644
--- a/pyqtgraph/parametertree/parameterTypes.py
+++ b/pyqtgraph/parametertree/parameterTypes.py
@@ -317,6 +317,11 @@ class SimpleParameter(Parameter):
             self.value = self.colorValue
             self.saveState = self.saveColorState
     
+    def setValue(self, value, blockSignal=None):
+        if self.opts['type'] == 'int':
+            value = int(value)
+        Parameter.setValue(self, value, blockSignal)
+
     def colorValue(self):
         return fn.mkColor(Parameter.value(self))