diff --git a/src/intel/compiler/brw_vue_map.c b/src/intel/compiler/brw_vue_map.c
index 76ca4004230..02ca51b1404 100644
--- a/src/intel/compiler/brw_vue_map.c
+++ b/src/intel/compiler/brw_vue_map.c
@@ -266,7 +266,7 @@ varying_name(brw_varying_slot slot)
    assume(slot < BRW_VARYING_SLOT_COUNT);
 
    if (slot < VARYING_SLOT_MAX)
-      return gl_varying_slot_name(slot);
+      return gl_varying_slot_name((gl_varying_slot)slot);
 
    static const char *brw_names[] = {
       [BRW_VARYING_SLOT_NDC - VARYING_SLOT_MAX] = "BRW_VARYING_SLOT_NDC",