diff --git a/tools/plugins/clad/CMakeLists.txt b/tools/plugins/clad/CMakeLists.txt
index 9bdc9bef0e..0658733f37 100644
--- a/tools/plugins/clad/CMakeLists.txt
+++ b/tools/plugins/clad/CMakeLists.txt
@@ -20,7 +20,7 @@ if(MSVC)
     set(_clad_build_type Release)
   endif()
 endif(MSVC)
-if(NOT _clad_build_type STREQUAL "")
+if(NOT _clad_build_type STREQUAL "" AND NOT _clad_build_type STREQUAL ".")
   set(EXTRA_BUILD_ARGS --config ${_clad_build_type})
 endif()
 set(_CLAD_LIBRARY_PATH ${CMAKE_CURRENT_BINARY_DIR}/clad-prefix/src/clad-build/${_clad_build_type}/lib${LLVM_LIBDIR_SUFFIX})