diff --git a/src/support/lassert.cpp b/src/support/lassert.cpp
index eb23ab6638..64f92a61ac 100644
--- a/src/support/lassert.cpp
+++ b/src/support/lassert.cpp
@@ -20,9 +20,7 @@ void doAssert(char const * expr,  char const * file, long line)
 {
 	LYXERR0("ASSERTION " << expr << " VIOLATED IN " << file << ":" << line);
 	// comment this out if not needed
-#ifdef ENABLE_ASSERTIONS
 	BOOST_ASSERT(false);
-#endif
 }
 
 } // namespace lyx