diff --git a/src/gallium/drivers/lima/ir/pp/nir.c b/src/gallium/drivers/lima/ir/pp/nir.c
index 461e07c5e51..fbba1ce8e7e 100644
--- a/src/gallium/drivers/lima/ir/pp/nir.c
+++ b/src/gallium/drivers/lima/ir/pp/nir.c
@@ -293,6 +293,7 @@ static bool ppir_emit_discard_block(ppir_compiler *comp)
 
    comp->discard_block = block;
    block->comp  = comp;
+   block->index = INT_MAX;
 
    discard = ppir_node_create(block, ppir_op_discard, -1, 0);
    if (discard)