diff --git a/toolchains/win32-mingw-cross.cmake b/toolchains/win32-mingw-cross.cmake
index 42bdbbc..6df148e 100644
--- a/toolchains/win32-mingw-cross.cmake
+++ b/toolchains/win32-mingw-cross.cmake
@@ -34,8 +34,8 @@ endif()
 #set(APP_NSIS_PATH /usr/bin/makensis)
 
 
-# Enable LTO for Release build
-set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
+# Enable LTO for Release build (does not work with mingw)
+#set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
 
 # Increase optimizations of Release builds
 add_compile_options("$<$<CONFIG:RELEASE>:-g0 -O3 -s>")
diff --git a/toolchains/win32-mingw-msys2.cmake b/toolchains/win32-mingw-msys2.cmake
index 6642b0e..3c11c37 100644
--- a/toolchains/win32-mingw-msys2.cmake
+++ b/toolchains/win32-mingw-msys2.cmake
@@ -19,8 +19,8 @@ set(CMAKE_CXX_COMPILER i686-w64-mingw32-g++)
 # The target environment. This is a path which is valid for msys2.
 set(CMAKE_FIND_ROOT_PATH "$ENV{MINGW_PREFIX}")
 
-# Enable LTO for Release build
-set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
+# Enable LTO for Release build (does not work with mingw)
+#set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
 
 # Increase optimizations of Release builds
 add_compile_options("$<$<CONFIG:RELEASE>:-g0 -O3 -s>")
diff --git a/toolchains/win64-mingw-cross.cmake b/toolchains/win64-mingw-cross.cmake
index 2b0677c..4956bf4 100644
--- a/toolchains/win64-mingw-cross.cmake
+++ b/toolchains/win64-mingw-cross.cmake
@@ -34,8 +34,8 @@ endif()
 #set(APP_NSIS_PATH /usr/bin/makensis)
 
 
-# Enable LTO for Release build
-set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
+# Enable LTO for Release build (does not work with mingw)
+#set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
 
 # Increase optimizations of Release builds
 add_compile_options("$<$<CONFIG:RELEASE>:-g0 -O3 -s>")
diff --git a/toolchains/win64-mingw-msys2.cmake b/toolchains/win64-mingw-msys2.cmake
index a306578..c97f4a5 100644
--- a/toolchains/win64-mingw-msys2.cmake
+++ b/toolchains/win64-mingw-msys2.cmake
@@ -19,8 +19,8 @@ set(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
 # The target environment. This is a path which is valid for msys2.
 set(CMAKE_FIND_ROOT_PATH "$ENV{MINGW_PREFIX}")
 
-# Enable LTO for Release build
-set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
+# Enable LTO for Release build (does not work with mingw)
+#set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
 
 # Increase optimizations of Release builds
 add_compile_options("$<$<CONFIG:RELEASE>:-g0 -O3 -s>")