diff --git a/spice.proto b/spice.proto
index e16250f..bd56eb2 100644
--- a/spice.proto
+++ b/spice.proto
@@ -536,7 +536,7 @@ struct LineAttr {
    } u1 @anon;
    switch (flags) {
    case STYLED:
-        fixed28_4 *style[style_nseg];
+        fixed28_4 *style[style_nseg] @c_ptr;
    } u2 @anon;
 };
 
diff --git a/spice1.proto b/spice1.proto
index 7bbccb7..23ce9f1 100644
--- a/spice1.proto
+++ b/spice1.proto
@@ -493,7 +493,7 @@ struct LineAttr {
     uint8 style_nseg;
     fixed28_4 width @zero;
     fixed28_4 miter_limit @zero;
-    fixed28_4 *style[style_nseg];
+    fixed28_4 *style[style_nseg] @c_ptr;
 };
 
 struct RasterGlyphA1 {