diff --git a/cmake/functions/SetCompilerSettings.cmake b/cmake/functions/SetCompilerSettings.cmake
index e4abd9f..da2cad7 100644
--- a/cmake/functions/SetCompilerSettings.cmake
+++ b/cmake/functions/SetCompilerSettings.cmake
@@ -1,10 +1,12 @@
 include(CheckIPOSupported)
 
 function(SetOptimisationSettings)
-    if (NOT CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-        check_ipo_supported(RESULT result)
-        if(result)
-            set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE PARENT_SCOPE)
+    if(CMAKE_BUILD_TYPE STREQUAL "Release")
+        if (NOT CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+            check_ipo_supported(RESULT result)
+            if(result)
+                set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE PARENT_SCOPE)
+            endif()
         endif()
     endif()