diff --git a/src/util/format/u_format_pack.py b/src/util/format/u_format_pack.py
index 3307027..15c6be7 100644
--- a/src/util/format/u_format_pack.py
+++ b/src/util/format/u_format_pack.py
@@ -593,7 +593,7 @@
     def pack_into_struct(channels, swizzles):
         inv_swizzle = inv_swizzles(swizzles)
 
-        print('         struct util_format_%s pixel;' % format.short_name())
+        print('         struct util_format_%s pixel = {0};' % format.short_name())
     
         for i in range(4):
             dst_channel = channels[i]