diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
new file mode 100644
index 6ac5184..40038ac
*** a/src/backend/utils/misc/guc.c
--- b/src/backend/utils/misc/guc.c
*************** typedef struct
*** 694,700 ****
  #error XLOG_SEG_SIZE must be between 1MB and 1GB
  #endif
  
! static const char *memory_units_hint = gettext_noop("Valid units for this parameter are \"kB\", \"MB\", \"GB\", and \"TB\".");
  
  static const unit_conversion memory_unit_conversion_table[] =
  {
--- 694,700 ----
  #error XLOG_SEG_SIZE must be between 1MB and 1GB
  #endif
  
! static const char *memory_units_hint = gettext_noop("Valid units for this parameter are \"kB\"/\"KB\", \"MB\", \"GB\", and \"TB\".");
  
  static const unit_conversion memory_unit_conversion_table[] =
  {
*************** convert_to_base_unit(int64 value, const
*** 5322,5328 ****
  	for (i = 0; *table[i].unit; i++)
  	{
  		if (base_unit == table[i].base_unit &&
! 			strcmp(unit, table[i].unit) == 0)
  		{
  			if (table[i].multiplier < 0)
  				*base_value = value / (-table[i].multiplier);
--- 5322,5331 ----
  	for (i = 0; *table[i].unit; i++)
  	{
  		if (base_unit == table[i].base_unit &&
! 			(strcmp(unit, table[i].unit) == 0 ||
! 			 /* support the JEDEC standard which uses "KB" for 1024 */
! 			 (strcmp(unit, "KB") == 0 &&
! 			  strcmp(table[i].unit, "kB") == 0)))
  		{
  			if (table[i].multiplier < 0)
  				*base_value = value / (-table[i].multiplier);