diff --git a/src/interpreter.c b/src/interpreter.c
index 2f9ae76..7255a4c 100644
--- a/src/interpreter.c
+++ b/src/interpreter.c
@@ -52,6 +52,20 @@ static void recurse_program(Program* program, Tape* tape) {
 next:
     program_next(program, &s);
 
+    // printf("[");
+    // for(uint32_t i = 0; i < tape->len; i++) {
+    //     printf("0x%02x ", tape->data[i]);
+    // }
+    // printf("\b]\n ");
+    // for(uint32_t i = 0; i < tape->len; i++) {
+    //     if (i == tape->index) {
+    //         printf("  ^  ");
+    //     } else {
+    //         printf("     ");
+    //     }
+    // }
+    // printf(" \ + tape->indexn");
+
     switch (s) {
         case MoveLeft:
             tape_left(tape);
@@ -85,7 +99,7 @@ next:
         case Allocate: {
             uint8_t len = tape_get(tape);
             Tape* new = malloc(sizeof(Tape));
-            tape_init(len, tape);
+            tape_init(len, new);
             void* ptr = (void*) tape_ptr(tape);
             memcpy(ptr, &new, sizeof(Tape*));
             break;
diff --git a/src/program.c b/src/program.c
index 79ab0ea..aa113b6 100644
--- a/src/program.c
+++ b/src/program.c
@@ -159,7 +159,7 @@ void tape_set(Tape* tape, uint8_t value) {
 }
 
 uint8_t* tape_ptr(Tape* tape) {
-    return tape->data;
+    return tape->data + tape->index;
 }
 
 void tape_free(Tape* tape) {