diff --git a/simple64-gui/CMakeLists.txt b/simple64-gui/CMakeLists.txt
index 90e05dd..a5d3ccb 100644
--- a/simple64-gui/CMakeLists.txt
+++ b/simple64-gui/CMakeLists.txt
@@ -5,12 +5,10 @@ project(simple64-gui LANGUAGES CXX C)
 
 include(CheckIPOSupported)
 check_ipo_supported(RESULT ENABLE_IPO)
-if(ENABLE_IPO)
-    message("Interprocedural optimizations enabled")
-endif(ENABLE_IPO)
 
-if(ENABLE_IPO AND (CMAKE_BUILD_TYPE STREQUAL "Release"))
+if(ENABLE_IPO AND (NOT CMAKE_BUILD_TYPE STREQUAL "Debug"))
     set(CMAKE_INTERPROCEDURAL_OPTIMIZATION ON)
+    message("Interprocedural optimizations enabled")
 endif()
 
 include_directories(../mupen64plus-core/src/api)