diff --git a/libgimpbase/gimpprotocol.c b/libgimpbase/gimpprotocol.c
index 0d501cc919..e88fa43251 100644
--- a/libgimpbase/gimpprotocol.c
+++ b/libgimpbase/gimpprotocol.c
@@ -1085,7 +1085,7 @@ _gp_param_def_read (GIOChannel *channel,
                     gpointer    user_data)
 {
   if (! _gimp_wire_read_int32 (channel,
-                               &param_def->param_def_type, 1,
+                               (guint32 *) &param_def->param_def_type, 1,
                                user_data))
     return FALSE;
 
@@ -1470,7 +1470,7 @@ _gp_param_def_write (GIOChannel *channel,
                      gpointer    user_data)
 {
   if (! _gimp_wire_write_int32 (channel,
-                                &param_def->param_def_type, 1,
+                                (const guint32 *) &param_def->param_def_type, 1,
                                 user_data))
     return FALSE;
 
diff --git a/libgimpbase/gimputils.c b/libgimpbase/gimputils.c
index 7c7847da91..b30a33b69c 100644
--- a/libgimpbase/gimputils.c
+++ b/libgimpbase/gimputils.c
@@ -407,7 +407,7 @@ gimp_file_show_in_file_manager (GFile   *file,
         goto out;
       }
 
-    pidl = ILCreateFromPathW (w_filename);
+    pidl = (ITEMIDLIST *) ILCreateFromPathW (w_filename);
     if (!pidl)
       {
         g_set_error_literal (error, G_FILE_ERROR, 0,