diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 6407ab9d1c320..800922596f02a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -50,7 +50,6 @@ set(SECP256K1_ECMULT_GEN_KB 86 CACHE STRING "" FORCE)
 set(SECP256K1_BUILD_BENCHMARK OFF CACHE BOOL "" FORCE)
 set(SECP256K1_BUILD_TESTS ${BUILD_TESTS} CACHE BOOL "" FORCE)
 set(SECP256K1_BUILD_EXHAUSTIVE_TESTS ${BUILD_TESTS} CACHE BOOL "" FORCE)
-set(SECP256K1_BUILD_CTIME_TESTS OFF CACHE BOOL "" FORCE)
 set(SECP256K1_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
 include(GetTargetInterface)
 # -fsanitize and related flags apply to both C++ and C,