BACKGROUND: Illicit crop economies are shaped by gender arrangements that can play an important role in the experiences of illicit crop workers. In Colombia, the coca production -considered a war economy- granted peasant women a source of access to productive resources (land, credit and seeds) and paid work, conditions that are difficult to find in other legal agrarian economies. For this reason, policies pursuing a transition from war to peace, such as the ones that emerged from the 2016 Peace Agreement between the Colombian government and the FARC guerrilla, must incorporate a gender perspective in order to acknowledge the social progress that women can achieve in war scenarios. METHODS: The empirical evidence comes from thirty-one in-depth and semi-structured interviews with cocalero peasants, social leaders and public officials; ethnographic fieldwork in two municipalities with the highest levels of illicit crop production (Puerto Asís and Tumaco); official documents of anti-drug and Alternative Development policies in Colombia, and other official information from the agencies in charge of implementing these policies; and data from the survey of participants of the National Comprehensive Program for the Substitution of Illicit Crops (PNIS) (National University of Colombia, 2019), and one dataset from the Colombian National Administrative Department of Statistics (the Quality of Life Survey of 2018). For the analysis of the data we used an open-codification method and conducted hypothesis tests with Welch's correction. RESULTS: In Colombia, women involved in the coca economy experience a degree of empowerment that leads to increased income, time control and decision-making power. When we compared the lived experience of cocalero women with what the National Crop Substitution Programme -PNIS- offers, we found that the programme falls short from offering viable gender-sensitive alternatives, producing a setback in women's empowerment. CONCLUSION: Illicit crop economies in war contexts can be a source of social advancement for marginalized populations, particularly women. Thus, peace policies that do not recognise these advances, i.e. that do not incorporate a gender perspective in their design, deepen gender-based inequalities.