diff --git a/Userland/DevTools/Profiler/Profile.cpp b/Userland/DevTools/Profiler/Profile.cpp
index d66391ad8a..9bcb63a020 100644
--- a/Userland/DevTools/Profiler/Profile.cpp
+++ b/Userland/DevTools/Profiler/Profile.cpp
@@ -313,7 +313,7 @@ Result<NonnullOwnPtr<Profile>, String> Profile::load_from_perfcore_file(const St
         auto& stack_array = stack->as_array();
         for (ssize_t i = stack_array.values().size() - 1; i >= 0; --i) {
             auto& frame = stack_array.at(i);
-            auto ptr = frame.to_number<u32>();
+            auto ptr = frame.to_number<u64>();
             u32 offset = 0;
             FlyString object_name;
             String symbol;
@@ -338,7 +338,7 @@ Result<NonnullOwnPtr<Profile>, String> Profile::load_from_perfcore_file(const St
                 }
             }
 
-            event.frames.append({ object_name, symbol, ptr, offset });
+            event.frames.append({ object_name, symbol, (FlatPtr)ptr, offset });
         }
 
         if (event.frames.size() < 2)
@@ -491,7 +491,7 @@ ProfileNode::ProfileNode(Process const& process)
 {
 }
 
-ProfileNode::ProfileNode(Process const& process, const String& object_name, String symbol, u32 address, u32 offset, u64 timestamp, pid_t pid)
+ProfileNode::ProfileNode(Process const& process, const String& object_name, String symbol, FlatPtr address, u32 offset, u64 timestamp, pid_t pid)
     : m_process(process)
     , m_symbol(move(symbol))
     , m_pid(pid)
diff --git a/Userland/DevTools/Profiler/Profile.h b/Userland/DevTools/Profiler/Profile.h
index 7dd8e54b47..0007449852 100644
--- a/Userland/DevTools/Profiler/Profile.h
+++ b/Userland/DevTools/Profiler/Profile.h
@@ -28,7 +28,7 @@ namespace Profiler {
 
 class ProfileNode : public RefCounted<ProfileNode> {
 public:
-    static NonnullRefPtr<ProfileNode> create(Process const& process, FlyString object_name, String symbol, u32 address, u32 offset, u64 timestamp, pid_t pid)
+    static NonnullRefPtr<ProfileNode> create(Process const& process, FlyString object_name, String symbol, FlatPtr address, u32 offset, u64 timestamp, pid_t pid)
     {
         return adopt_ref(*new ProfileNode(process, move(object_name), move(symbol), address, offset, timestamp, pid));
     }
@@ -49,7 +49,7 @@ public:
 
     const FlyString& object_name() const { return m_object_name; }
     const String& symbol() const { return m_symbol; }
-    u32 address() const { return m_address; }
+    FlatPtr address() const { return m_address; }
     u32 offset() const { return m_offset; }
     u64 timestamp() const { return m_timestamp; }
 
@@ -68,7 +68,7 @@ public:
         m_children.append(child);
     }
 
-    ProfileNode& find_or_create_child(FlyString object_name, String symbol, u32 address, u32 offset, u64 timestamp, pid_t pid)
+    ProfileNode& find_or_create_child(FlyString object_name, String symbol, FlatPtr address, u32 offset, u64 timestamp, pid_t pid)
     {
         for (size_t i = 0; i < m_children.size(); ++i) {
             auto& child = m_children[i];
@@ -106,7 +106,7 @@ public:
 
 private:
     explicit ProfileNode(Process const&);
-    explicit ProfileNode(Process const&, const String& object_name, String symbol, u32 address, u32 offset, u64 timestamp, pid_t);
+    explicit ProfileNode(Process const&, const String& object_name, String symbol, FlatPtr address, u32 offset, u64 timestamp, pid_t);
 
     bool m_root { false };
     Process const& m_process;
@@ -114,7 +114,7 @@ private:
     FlyString m_object_name;
     String m_symbol;
     pid_t m_pid { 0 };
-    u32 m_address { 0 };
+    FlatPtr m_address { 0 };
     u32 m_offset { 0 };
     u32 m_event_count { 0 };
     u32 m_self_count { 0 };
@@ -158,7 +158,7 @@ public:
     struct Frame {
         FlyString object_name;
         String symbol;
-        u32 address { 0 };
+        FlatPtr address { 0 };
         u32 offset { 0 };
     };