diff --git a/CMakeLists.txt b/CMakeLists.txt
index 83c4557..4a716bd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,12 +39,12 @@ target_link_libraries(CreatureLibTests CreatureLibLibrary)
 target_link_libraries(CreatureLibTests CreatureLibBattling)
 
 if (WINDOWS)
-    set(CMAKE_CXX_FLAGS "-m64 -Wa,-mbig-obj")
+    set(CMAKE_CXX_FLAGS "-m64 -Wa,-mbig-obj -Wl,-allow-multiple-definition")
     # Statically link libraries we need in Windows.
-#    target_link_libraries(CreatureLibCore -static -static-libgcc -static-libstdc++)
-#    target_link_libraries(CreatureLibLibrary -static -static-libgcc -static-libstdc++)
-#    target_link_libraries(CreatureLibBattling -static -static-libgcc -static-libstdc++)
-#    target_link_libraries(CreatureLibTests -static -static-libgcc -static-libstdc++)
+    target_link_libraries(CreatureLibCore -static -static-libgcc -static-libstdc++)
+    target_link_libraries(CreatureLibLibrary -static -static-libgcc -static-libstdc++)
+    target_link_libraries(CreatureLibBattling -static -static-libgcc -static-libstdc++)
+    target_link_libraries(CreatureLibTests -static -static-libgcc -static-libstdc++)
 endif(WINDOWS)
 
 # Add a definition for the test library