diff --git a/src/ctffind_runner.cpp b/src/ctffind_runner.cpp
index cfc17b703..a4d7c98a0 100644
--- a/src/ctffind_runner.cpp
+++ b/src/ctffind_runner.cpp
@@ -799,6 +799,8 @@ void CtffindRunner::executeCtffind4(long int imic)
 	}
 	else
 		fh << "no" << std::endl;
+	// Set determine sample tilt? (as of ctffind-4.1.15)
+	fh << "no" << std::endl;
 	// Set expert options?
 	fh << "no" << std::endl;