Warning: This is 3.0 Edition material. It is possible that there is more recent 3.5 Edition version.
Inaccurate?

Supernatural Transformation

( Savage Species, p. 39)

[General]

You convert a spell-like ability to a supernatural ability.

Prerequisite

Innate spell-like ability,

Benefit

One of your innate spell-like abilities becomes a supernatural ability. It is no longer subject to spell resistance, though it can still be suppressed in an antimagic field. Using this ability does not provoke an attack of opportunity. The number of uses, if limited, does not change. The effective caster level equals your total Hit Dice or the effective caster level of the original ability, whichever is higher.

Special

You can gain this feat multiple times. Its effects do not stack. Each time you take it, it applies to a new spelllike ability.