diff --git a/cogl/cogl/cogl-matrix.h b/cogl/cogl/cogl-matrix.h
index b4482ae30..4a3d6156e 100644
--- a/cogl/cogl/cogl-matrix.h
+++ b/cogl/cogl/cogl-matrix.h
@@ -85,7 +85,6 @@ struct _CoglMatrix
 
   graphene_matrix_t COGL_PRIVATE (inv);
   unsigned long  COGL_PRIVATE (flags);
-  unsigned long  COGL_PRIVATE (_padding3);
 };
 
 /**