diff --git a/SingleSource/Regression/C/gcc-c-torture/execute/CMakeLists.txt b/SingleSource/Regression/C/gcc-c-torture/execute/CMakeLists.txt
index f0c32bf..4daf07e 100644
--- a/SingleSource/Regression/C/gcc-c-torture/execute/CMakeLists.txt
+++ b/SingleSource/Regression/C/gcc-c-torture/execute/CMakeLists.txt
@@ -56,6 +56,9 @@
   # Initialization of flexible array member
   pr28865.c
 
+  # Initialization of union is not required to initialize padding.
+  pr19687.c
+
   # GCC Extension: __builtin_*
   pr39228.c          # __builtin_isinff, __builtin_isinfl
   pr47237.c          # __builtin_apply, __builtin_apply_args