diff --git a/CMakeLists.txt b/CMakeLists.txt
index c858a949..02e43e14 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,6 +5,12 @@ cmake_minimum_required(VERSION 3.26.4)
 option(MOMO_ENABLE_SANITIZER "Enable sanitizer" OFF)
 option(MOMO_BUILD_AS_LIBRARY "Configure and Build the emulator as a shared library (without the samples and tests)" OFF)
 
+if(MOMO_BUILD_AS_LIBRARY)
+    add_compile_definitions(MOMO_BUILD_AS_LIBRARY=1)
+else()
+    add_compile_definitions(MOMO_BUILD_AS_LIBRARY=0)
+endif()
+
 ##########################################
 
 set(CMAKE_DISABLE_IN_SOURCE_BUILD ON)
diff --git a/src/unicorn-emulator/unicorn_x64_emulator.hpp b/src/unicorn-emulator/unicorn_x64_emulator.hpp
index f0535a56..6d5bd48e 100644
--- a/src/unicorn-emulator/unicorn_x64_emulator.hpp
+++ b/src/unicorn-emulator/unicorn_x64_emulator.hpp
@@ -12,6 +12,8 @@
 
 namespace unicorn
 {
+#if !MOMO_BUILD_AS_LIBRARY
     UNICORN_EMULATOR_DLL_STORAGE
+#endif
     std::unique_ptr<x64_emulator> create_x64_emulator();
 }