diff --git a/src/backends/icicle-emulator/icicle_x64_emulator.cpp b/src/backends/icicle-emulator/icicle_x64_emulator.cpp
index 06622586..d6296d76 100644
--- a/src/backends/icicle-emulator/icicle_x64_emulator.cpp
+++ b/src/backends/icicle-emulator/icicle_x64_emulator.cpp
@@ -326,7 +326,7 @@ namespace icicle
             return wrap_hook(id);
         }
 
-        emulator_hook* hook_memory_read(const uint64_t address, const size_t size,
+        emulator_hook* hook_memory_read(const uint64_t address, const uint64_t size,
                                         memory_access_hook_callback callback) override
         {
             auto obj = make_function_object(std::move(callback));
@@ -342,7 +342,7 @@ namespace icicle
             return wrap_hook(id);
         }
 
-        emulator_hook* hook_memory_write(const uint64_t address, const size_t size,
+        emulator_hook* hook_memory_write(const uint64_t address, const uint64_t size,
                                          memory_access_hook_callback callback) override
         {
             auto obj = make_function_object(std::move(callback));
diff --git a/src/backends/unicorn-emulator/unicorn_x64_emulator.cpp b/src/backends/unicorn-emulator/unicorn_x64_emulator.cpp
index 955fca63..6c449b13 100644
--- a/src/backends/unicorn-emulator/unicorn_x64_emulator.cpp
+++ b/src/backends/unicorn-emulator/unicorn_x64_emulator.cpp
@@ -556,16 +556,16 @@ namespace unicorn
                 return this->hook_memory_execution(address, 1, std::move(callback));
             }
 
-            emulator_hook* hook_memory_read(const uint64_t address, const size_t size,
+            emulator_hook* hook_memory_read(const uint64_t address, const uint64_t size,
                                             memory_access_hook_callback callback) override
             {
                 auto read_wrapper = [c = std::move(callback)](uc_engine*, const uc_mem_type type,
-                                                              const uint64_t address, const int size,
+                                                              const uint64_t address, const int length,
                                                               const uint64_t value) {
                     const auto operation = map_memory_operation(type);
-                    if (operation == memory_operation::read && size > 0)
+                    if (operation == memory_operation::read && length > 0)
                     {
-                        c(address, &value, std::min(static_cast<size_t>(size), sizeof(value)));
+                        c(address, &value, std::min(static_cast<size_t>(length), sizeof(value)));
                     }
                 };
 
@@ -581,7 +581,7 @@ namespace unicorn
                 return container->as_opaque_hook();
             }
 
-            emulator_hook* hook_memory_write(const uint64_t address, const size_t size,
+            emulator_hook* hook_memory_write(const uint64_t address, const uint64_t size,
                                              memory_access_hook_callback callback) override
             {
                 auto write_wrapper = [c = std::move(callback)](uc_engine*, const uc_mem_type type, const uint64_t addr,
diff --git a/src/emulator/hook_interface.hpp b/src/emulator/hook_interface.hpp
index 96ae6195..3d268bbb 100644
--- a/src/emulator/hook_interface.hpp
+++ b/src/emulator/hook_interface.hpp
@@ -55,8 +55,8 @@ class hook_interface
 
     virtual emulator_hook* hook_memory_execution(memory_execution_hook_callback callback) = 0;
     virtual emulator_hook* hook_memory_execution(uint64_t address, memory_execution_hook_callback callback) = 0;
-    virtual emulator_hook* hook_memory_read(uint64_t address, size_t size, memory_access_hook_callback callback) = 0;
-    virtual emulator_hook* hook_memory_write(uint64_t address, size_t size, memory_access_hook_callback callback) = 0;
+    virtual emulator_hook* hook_memory_read(uint64_t address, uint64_t size, memory_access_hook_callback callback) = 0;
+    virtual emulator_hook* hook_memory_write(uint64_t address, uint64_t size, memory_access_hook_callback callback) = 0;
 
     virtual emulator_hook* hook_instruction(int instruction_type, instruction_hook_callback callback) = 0;