Where to put or use -include-headers-once <header files> option ....? While analyzing one of my project this error is coming too many times........?

 Verifying eeprom.c (99/228) 
D:\data\ccm\wa\RKS\CAJUN-CAJUN_MIB_ti9\CAJUN\App\CAJUN_DH\Src\d_gdi_updown_if.h, line 15: warning: multiple inclusion of "D:\data\ccm\wa\RKS\CAJUN-CAJUN_MIB_ti9\CAJUN\App\CAJUN_DH\Src\can_enum.h" may slow down the compilation. Use the -include-headers-once <header files> option to avoid this warning. 
|    #include "can_enum.h" 
|                         ^