diff --git a/libgimpconfig/gimpconfig-serialize.c b/libgimpconfig/gimpconfig-serialize.c
index 4bcd858967..634cbbf17b 100644
--- a/libgimpconfig/gimpconfig-serialize.c
+++ b/libgimpconfig/gimpconfig-serialize.c
@@ -288,7 +288,7 @@ gimp_config_serialize_property (GimpConfig       *config,
 
               data = g_bytes_get_data (bytes, &data_length);
 
-              gimp_config_writer_printf (writer, "%llu", data_length);
+              gimp_config_writer_printf (writer, "%lu", data_length);
               gimp_config_writer_data (writer, data_length, data);
             }
           else
diff --git a/plug-ins/common/file-jp2-load.c b/plug-ins/common/file-jp2-load.c
index 19cb58aecf..8151fe7c7b 100644
--- a/plug-ins/common/file-jp2-load.c
+++ b/plug-ins/common/file-jp2-load.c
@@ -1235,7 +1235,7 @@ load_image (GimpProcedure     *procedure,
           goto out;
         }
     }
-  else if ((image->color_space == OPJ_CLRSPC_CMYK))
+  else if (image->color_space == OPJ_CLRSPC_CMYK)
     {
       if (! color_cmyk_to_rgb (image))
         {