diff --git a/src/smt/theory_str.cpp b/src/smt/theory_str.cpp
index 0f434900e..92920c220 100644
--- a/src/smt/theory_str.cpp
+++ b/src/smt/theory_str.cpp
@@ -44,7 +44,7 @@ theory_str::theory_str(ast_manager & m):
         opt_CheckVariableScope(true),
         opt_UseFastLengthTesterCache(true),
         opt_UseFastValueTesterCache(true),
-        opt_AssertStrongerArrangements(true),
+        opt_AssertStrongerArrangements(false),
         /* Internal setup */
         search_started(false),
         m_autil(m),