We investigated developmental changes during the transition from one-word to two-word production, focusing on strategies to lengthen utterances phonologically and to control utterances suprasegmentally. We hypothesized that there is a period of reorganization at the onset of word combinations indicated by decreases in both filler syllables (Fillers) and final syllable lengthening (FSL). The data are from a visually impaired child (Seth) between 1 ; 6.21 and 1 ; 10.26. Seth produced many Fillers until 1 ; 9 when their number decreased for about two weeks after which they changed in nature. FSL was observed until 1 ; 8, but diminished at 1 ; 9. These two regressions coincide with the onset of word combination.