Canonical theories of bureaucracy demonstrate the need for enhanced monitoring in government hierarchies. I argue that intensive top-down monitoring may reduce the productivity of bureaucrats by frightening them away from the informal practices that they would otherwise rely on when completing daily tasks. Utilizing a unique dataset of sub-provincial inspections in Chinaâ€™s recent anti-corruption campaign, I identify this â€œchilling effectâ€ by exploiting variation in the timing of inspections from 2012 to 2017. I show that these anti-corruption activities lower the area of land development projects proposed by bureaucrats. Causal mediation analyses with investigation data and original measures of corruption potential reveal that these effects are unlikely driven by reduction of actual corruption. Extension analyses suggest similar consequences on revenue collection and environmental regulation. Although scholars of state-building equate low corruption with effective bureaucracy, these findings present a paradox where intensive state-led efforts to lower corruption may further undermine bureaucratsâ€™ productivity.