diff --git a/build/cmake/ida.cmake b/build/cmake/ida.cmake
index 248f1311408af165d903e3c9f6ec10cd1a9cd035..7ada4b34aa3e8e71afda3eafaa3677e0b1e2323b 100644
--- a/build/cmake/ida.cmake
+++ b/build/cmake/ida.cmake
@@ -131,7 +131,6 @@ function(compile_with_ida PARENT_DIR, DIR_SUNDIALS)
         ${SUMMA_ENGINE_DIR}/summaSolveSundialsIDA.f90
         ${SUMMA_ENGINE_DIR}/systemSolvSundials.f90
         ${SUMMA_ENGINE_DIR}/varSubstep.f90
-        ${SUMMA_ENGINE_DIR}/varSubstepSundials.f90
         ${SUMMA_ENGINE_DIR}/opSplittin.f90
         ${ENGINE_DIR}/sundials/coupled_em.f90)