diff --git a/ext/opencv/gsthanddetect.cpp b/ext/opencv/gsthanddetect.cpp
index c3ebc72398..c8ced3c4bf 100644
--- a/ext/opencv/gsthanddetect.cpp
+++ b/ext/opencv/gsthanddetect.cpp
@@ -191,21 +191,21 @@ gst_handdetect_class_init (GstHanddetectClass * klass)
       g_param_spec_boolean ("display",
           "Display",
           "Whether the detected hands are highlighted in output frame",
-          TRUE, G_PARAM_READWRITE)
+          TRUE, (GParamFlags)G_PARAM_READWRITE)
       );
   g_object_class_install_property (gobject_class,
       PROP_PROFILE_FIST,
       g_param_spec_string ("profile_fist",
           "Profile_fist",
           "Location of HAAR cascade file (fist gesture)",
-          HAAR_FILE_FIST, G_PARAM_READWRITE)
+          HAAR_FILE_FIST, (GParamFlags)G_PARAM_READWRITE)
       );
   g_object_class_install_property (gobject_class,
       PROP_PROFILE_PALM,
       g_param_spec_string ("profile_palm",
           "Profile_palm",
           "Location of HAAR cascade file (palm gesture)",
-          HAAR_FILE_PALM, G_PARAM_READWRITE)
+          HAAR_FILE_PALM, (GParamFlags)G_PARAM_READWRITE)
       );
   /* FIXME: property name needs fixing */
   g_object_class_install_property (gobject_class,
@@ -213,7 +213,7 @@ gst_handdetect_class_init (GstHanddetectClass * klass)
       g_param_spec_int ("ROI_X",
           "ROI_X",
           "X of left-top pointer in region of interest \nGestures in the defined region of interest will emit messages",
-          0, INT_MAX, 0, G_PARAM_READWRITE)
+          0, INT_MAX, 0, (GParamFlags)G_PARAM_READWRITE)
       );
   /* FIXME: property name needs fixing */
   g_object_class_install_property (gobject_class,
@@ -221,7 +221,7 @@ gst_handdetect_class_init (GstHanddetectClass * klass)
       g_param_spec_int ("ROI_Y",
           "ROI_Y",
           "Y of left-top pointer in region of interest \nGestures in the defined region of interest will emit messages",
-          0, INT_MAX, 0, G_PARAM_READWRITE)
+          0, INT_MAX, 0, (GParamFlags)G_PARAM_READWRITE)
       );
   /* FIXME: property name needs fixing */
   g_object_class_install_property (gobject_class,
@@ -229,7 +229,7 @@ gst_handdetect_class_init (GstHanddetectClass * klass)
       g_param_spec_int ("ROI_WIDTH",
           "ROI_WIDTH",
           "WIDTH of left-top pointer in region of interest \nGestures in the defined region of interest will emit messages",
-          0, INT_MAX, 0, G_PARAM_READWRITE)
+          0, INT_MAX, 0, (GParamFlags)G_PARAM_READWRITE)
       );
   /* FIXME: property name needs fixing */
   g_object_class_install_property (gobject_class,
@@ -237,7 +237,7 @@ gst_handdetect_class_init (GstHanddetectClass * klass)
       g_param_spec_int ("ROI_HEIGHT",
           "ROI_HEIGHT",
           "HEIGHT of left-top pointer in region of interest \nGestures in the defined region of interest will emit messages",
-          0, INT_MAX, 0, G_PARAM_READWRITE)
+          0, INT_MAX, 0, (GParamFlags)G_PARAM_READWRITE)
       );
 
   gst_element_class_set_static_metadata (element_class,