I Say Mama

KBug finally says mama; but he will only say it when I am doing something and he wants me. So basically I have to ignore him to hear- Mama, ma ma ma, MAMA...mum mum.
A month or so back he hollered MUM MUM...I came running in the room picked him up & said "you said mama, you said mama." He gave me this whatever look and said "dada." What a little Turkey.