diff --git a/src/builtin/CMakeLists.txt b/src/builtin/CMakeLists.txt
index c267759c0..74edae189 100644
--- a/src/builtin/CMakeLists.txt
+++ b/src/builtin/CMakeLists.txt
@@ -30,7 +30,7 @@ function(add_theory_core FILE ARG EXTRA_DEPS)
     COMMAND ${SHELL_DIR}/lean ${ARG} -o ${CMAKE_CURRENT_BINARY_DIR}/${FNAME} ${CMAKE_CURRENT_SOURCE_DIR}/${FILE}
     COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/${FNAME} ${SHELL_DIR}/${FNAME}
     COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/${FNAME} ${CMAKE_CURRENT_SOURCE_DIR}/obj/${FNAME}
-    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${FILE} ${EXTRA_DEPS})
+    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${FILE} ${SHELL_DIR}/lean ${EXTRA_DEPS})
   add_custom_target("${BASENAME}_builtin" DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${FNAME} ${EXTRA_DEPS})
   add_dependencies(builtin ${BASENAME}_builtin)
   install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${FNAME} DESTINATION library)