The aim of this study was to validate the Short Multidimensional Inventory Lifestyle Evaluation-Confinement (SMILE-C) in a Malaysian context. The SMILE-C, which is a respondent-generated instrument, was used to ask participants questions on their lifestyle during the COVID-19 pandemic. The indices of seven sub-scores were then calculated. A total of 121 university staff members completed the Malay version of the SMILE-C as well as instruments for measuring well-being, family life satisfaction, mindfulness and awareness, work engagement, and quality of life. The Cronbach's alpha values and Pearson correlation coefficients were satisfactory in this initial validation of the instrument. The SMILE-C showed positive correlations with all the variables being studied. The results supported the criterion-related validity and psychometric properties of the Malay version of the SMILE-C as an instrument for assessing lifestyle changes during the COVID-19 pandemic.