diff --git a/CMake/CatchConfigOptions.cmake b/CMake/CatchConfigOptions.cmake
index 733ec65e..e59f3a1e 100644
--- a/CMake/CatchConfigOptions.cmake
+++ b/CMake/CatchConfigOptions.cmake
@@ -68,7 +68,11 @@ set(_OtherConfigOptions
 foreach(OptionName ${_OtherConfigOptions})
   AddConfigOption(${OptionName})
 endforeach()
-set(CATCH_CONFIG_SHARED_LIBRARY ${BUILD_SHARED_LIBS})
+if(DEFINED BUILD_SHARED_LIBS)
+    set(CATCH_CONFIG_SHARED_LIBRARY ${BUILD_SHARED_LIBS})
+else()
+    set(CATCH_CONFIG_SHARED_LIBRARY "")
+endif()
 
 set(CATCH_CONFIG_DEFAULT_REPORTER "console" CACHE STRING "Read docs/configuration.md for details. The name of the reporter should be without quotes.")
 set(CATCH_CONFIG_CONSOLE_WIDTH "80" CACHE STRING "Read docs/configuration.md for details. Must form a valid integer literal.")