diff --git a/src/video_core/buffer_cache/buffer_cache.h b/src/video_core/buffer_cache/buffer_cache.h
index b1bf77f8a..3dab95db7 100644
--- a/src/video_core/buffer_cache/buffer_cache.h
+++ b/src/video_core/buffer_cache/buffer_cache.h
@@ -42,7 +42,7 @@ public:
 
     struct Traits {
         using Entry = BufferId;
-        static constexpr size_t AddressSpaceBits = 39;
+        static constexpr size_t AddressSpaceBits = 40;
         static constexpr size_t FirstLevelBits = 14;
         static constexpr size_t PageBits = CACHING_PAGEBITS;
     };
diff --git a/src/video_core/buffer_cache/memory_tracker_base.h b/src/video_core/buffer_cache/memory_tracker_base.h
index 375701c4c..a59bcfff5 100644
--- a/src/video_core/buffer_cache/memory_tracker_base.h
+++ b/src/video_core/buffer_cache/memory_tracker_base.h
@@ -14,7 +14,7 @@ namespace VideoCore {
 
 class MemoryTracker {
 public:
-    static constexpr size_t MAX_CPU_PAGE_BITS = 39;
+    static constexpr size_t MAX_CPU_PAGE_BITS = 40;
     static constexpr size_t HIGHER_PAGE_BITS = 22;
     static constexpr size_t HIGHER_PAGE_SIZE = 1ULL << HIGHER_PAGE_BITS;
     static constexpr size_t HIGHER_PAGE_MASK = HIGHER_PAGE_SIZE - 1ULL;