  Using the fixed point theorem we establish the Hyers-Ulam-Rassias stability
of the generalized Pexider functional equation $$\frac{1}{\mid K\mid}\sum_{k\in
K}f(x+k\cdot y)=g(x)+h(y),\;\;x,y\in E$$ from a normed space $E$ into a
complete $\beta$-normed space $F$, where $K$ is a finite abelian subgroup of
the automorphism group of the group $(E,+)$.
