One hypothesis holds that bilingual children's cross-linguistic transfer occurs in spontaneous production when there is structural overlap between the two languages and ambiguity in at least one language (Dopke, 1998; Hulk and Muller, 2000). This study tested whether overlap/ambiguity of adjective-noun strings in English and French predicted transfer. In English, there is only one order (adjective-noun) while in French both adjective-noun and noun-adjective order are allowed, with the latter as the default. Unidirectional transfer from English to French was predicted. 35 French-English preschool bilingual children (and 35 age-matched English monolinguals and 10 French monolinguals) were asked to name pictures by using an adjective-noun string. In addition to the reversing adjective-noun strings in French as predicted by the overlap/ambiguity hypothesis, the bilingual children reversed more adjective-noun strings in English than monolinguals. It is proposed that cross-linguistic transfer might better be understood as an epiphenomenon of speech production.