diff --git a/include/rstl/auto_ptr.hpp b/include/rstl/auto_ptr.hpp
index d3a70ddd..cb91e824 100644
--- a/include/rstl/auto_ptr.hpp
+++ b/include/rstl/auto_ptr.hpp
@@ -23,8 +23,8 @@ public:
   }
   // TODO check
   auto_ptr& operator=(const auto_ptr& other) {
-    if (this != &other) {
-      if (x0_has != false) {
+    if (&other != this) {
+      if (x0_has) {
         delete x4_item;
       }
       x0_has = other.x0_has;
diff --git a/src/MetroidPrime/CMemoryCardDriver.cpp b/src/MetroidPrime/CMemoryCardDriver.cpp
index e88459c5..7b178f14 100644
--- a/src/MetroidPrime/CMemoryCardDriver.cpp
+++ b/src/MetroidPrime/CMemoryCardDriver.cpp
@@ -706,7 +706,9 @@ void CMemoryCardDriver::ReadFinished() {
   }
 }
 
-void CMemoryCardDriver::EraseFileSlot(int) {}
+void CMemoryCardDriver::EraseFileSlot(int saveIdx) {
+  xe4_fileSlots[saveIdx] = nullptr;
+}
 
 void CMemoryCardDriver::BuildNewFileSlot(int) {}