We study the extent of socioeconomic inequality in child malnutrition in Mozambique using data from the Household Budget Survey 1996–1997 and 2008–2009, and from the Development and Health Statistics 2003 and 2011. Pro-rich inequalities in the distribution of malnutrition are found for all years, and further decompositions of the concentration index into its components reveal that most of the inequality in malnutrition is due to inequality in consumption. We claim that while absolute levels of chronic child malnutrition tended to decrease over time, socioeconomic inequality in malnutrition did not decrease meanwhile. It actually seems to have slightly increased.