diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8d36eee6..71b595b0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -69,6 +69,7 @@ set(SYSCONF_INSTALL_DIR     "/etc"
 set(CMAKE_INSTALL_PREFIX    "/usr"                                                                      CACHE PATH      "Set prefix for installation")
 set(CMAKE_INSTALL_LIBDIR    "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}"                                  CACHE PATH      "Directory where lib will be installed")
 set(CONF_INST_DIR           "${CMAKE_INSTALL_PREFIX}/${SYSCONF_INSTALL_DIR}"                            CACHE PATH      "Set ldc.conf directory for installation")
+set(BUILD_SHARED_LIBS       ON                                                                          CACHE BOOL      "Build dynamic Lib for druntime and phobos/tango")
 option(USE_BOEHM_GC "use the Boehm garbage collector internally")
 option(GENERATE_OFFTI "generate complete ClassInfo.offTi arrays")
 option(USE_METADATA "use metadata and related custom optimization passes")