This study investigates learners’ implicit knowledge of Voice Onset Time (VOT), a non-distinctive phonetic difference between German and French. Previous studies on VOT in speech produced by English native speakers learning Spanish (Flege & Hammond 1982) and L1 Spanish-speaking learners of English (Mora et al. 2014) suggest that learners modify their native VOT patterns when attempting to imitate a foreign accent. This was taken as evidence for the development of tacit awareness of cross-language VOT difference between L1 and L2 voiceless stops. In order to determine if similar modifications occur in the productions of German speaking learners of French as a foreign language, we assessed learners’ speech through VOT duration measures in word-initial /p,t,k/. Data was collected through a reading-aloud elicitation task. Results provide support for the hypothesis that German native speakers are able to modify VOT duration when mimicking a French accent. Given these findings, we believe that accent imitation tasks could be used in L2 phonology instruction to raise learners’ awareness of non-distinctive phonetic differences.