diff --git a/cmake/f_check.cmake b/cmake/f_check.cmake
index e63bd9d4c..d86187ccc 100644
--- a/cmake/f_check.cmake
+++ b/cmake/f_check.cmake
@@ -30,6 +30,9 @@ else()
   endif()
   #  set (NO_LAPACK 1)
   set(C_LAPACK 1)
+  if (INTERFACE64)
+     set (CCOMMON_OPT "${CCOMMON_OPT} -DLAPACK_ILP64")
+  endif ()
   set(TIMER "NONE")
   set (NOFORTRAN 1)
 endif()