diff --git a/dmc-lib/src/ir/register_allocation.rs b/dmc-lib/src/ir/register_allocation.rs
index f3f270d..210d64d 100644
--- a/dmc-lib/src/ir/register_allocation.rs
+++ b/dmc-lib/src/ir/register_allocation.rs
@@ -55,7 +55,7 @@ fn block_live_in_live_out(ir_block: &IrBlock) -> (LivenessSets, LivenessSets) {
             // in: use(s) U ( out(s) - def(s) )
             let use_s = collect_statement_vr_uses(ir_statement);
             let out_s = &live_out[statement_index];
-            let def_s = collect_statement_vr_uses(ir_statement);
+            let def_s = collect_statement_vr_definitions(ir_statement);
 
             let rhs = out_s - &def_s;
             let new_ins = use_s.union(&rhs).map(|v| *v).collect::<HashSet<_>>();
@@ -181,7 +181,7 @@ fn collect_statement_vr_definitions(statement: &IrStatement) -> HashSet<IrFreeVa
 
 fn collect_statement_vr_uses(statement: &IrStatement) -> HashSet<IrFreeVariableId> {
     let mut vr_collector = VrCollector::new();
-    statement.vr_definitions(&mut vr_collector);
+    statement.vr_uses(&mut vr_collector);
     vr_collector.take_vrs()
 }