diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index 65438f7..7bdfc4e 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -1437,7 +1437,8 @@
               pred_ctrl_align16[inst->predicate]);
    }
 
-   fprintf(file, "%s", brw_instruction_name(devinfo, inst->opcode));
+   fprintf(file, "%s(%d)", brw_instruction_name(devinfo, inst->opcode),
+           inst->exec_size);
    if (inst->saturate)
       fprintf(file, ".sat");
    if (inst->conditional_mod) {