1 files changed, 4 insertions, 2 deletions
diff --git a/clox/src/vm.c b/clox/src/vm.c
index c9556b2..601b128 100644
--- a/clox/src/vm.c
+++ b/clox/src/vm.c
@@ -163,8 +163,8 @@ static bool isFalsey(Value value) {
 }
 
 static void concatenate() {
-  ObjString *b = AS_STRING(pop());
-  ObjString *a = AS_STRING(pop());
+  ObjString *b = AS_STRING(peek(0));
+  ObjString *a = AS_STRING(peek(1));
 
   int length = a->length + b->length;
   char *chars = ALLOCATE(char, length + 1);
@@ -173,6 +173,8 @@ static void concatenate() {
   chars[length] = '\0';
 
   ObjString *result = takeString(chars, length);
+  pop();
+  pop();
   push(OBJ_VAL(result));
 }