diff --git a/libs/indidevice/property/indipropertybasic.cpp b/libs/indidevice/property/indipropertybasic.cpp
index a7e8f484ed..c47a577cfc 100644
--- a/libs/indidevice/property/indipropertybasic.cpp
+++ b/libs/indidevice/property/indipropertybasic.cpp
@@ -393,7 +393,7 @@ const WidgetView<T> *PropertyBasic<T>::at(size_t index) const
 }
 
 template <typename T>
-WidgetView<T> &PropertyBasic<T>::operator[](ssize_t index) const
+WidgetView<T> &PropertyBasic<T>::operator[](int index) const
 {
     D_PTR(const PropertyBasic);
     assert(index >= 0);
diff --git a/libs/indidevice/property/indipropertybasic.h b/libs/indidevice/property/indipropertybasic.h
index a22bbe4621..055d5e061b 100644
--- a/libs/indidevice/property/indipropertybasic.h
+++ b/libs/indidevice/property/indipropertybasic.h
@@ -128,7 +128,7 @@ class PropertyBasic : public INDI::Property
 
         const WidgetView<T> *at(size_t index) const;
 
-        WidgetView<T> &operator[](ssize_t index) const;
+        WidgetView<T> &operator[](int index) const;
 
     public: // STL-style iterators
         WidgetView<T> *begin();