diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 2beaf72b239..8b623606dc3 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -602,6 +602,7 @@ void st_init_extensions(struct pipe_screen *screen,
       { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR   },
       { o(ARB_sample_shading),               PIPE_CAP_SAMPLE_SHADING                   },
       { o(ARB_seamless_cube_map),            PIPE_CAP_SEAMLESS_CUBE_MAP                },
+      { o(ARB_shader_ballot),                PIPE_CAP_TGSI_BALLOT                      },
       { o(ARB_shader_clock),                 PIPE_CAP_TGSI_CLOCK                       },
       { o(ARB_shader_draw_parameters),       PIPE_CAP_DRAW_PARAMETERS                  },
       { o(ARB_shader_group_vote),            PIPE_CAP_TGSI_VOTE                        },