diff --git a/libs/ezsat/ezminisat.cc b/libs/ezsat/ezminisat.cc
index c6126d86..287177b1 100644
--- a/libs/ezsat/ezminisat.cc
+++ b/libs/ezsat/ezminisat.cc
@@ -35,6 +35,9 @@ ezMiniSAT::ezMiniSAT() : minisatSolver(NULL)
 {
 	minisatSolver = NULL;
 	foundContradiction = false;
+
+	freeze(TRUE);
+	freeze(FALSE);
 }
 
 ezMiniSAT::~ezMiniSAT()
diff --git a/libs/ezsat/ezsat.cc b/libs/ezsat/ezsat.cc
index f77a3b91..cc6301e4 100644
--- a/libs/ezsat/ezsat.cc
+++ b/libs/ezsat/ezsat.cc
@@ -36,8 +36,8 @@ ezSAT::ezSAT()
 	solverTimeout = 0;
 	solverTimoutStatus = false;
 
-	freeze(literal("TRUE"));
-	freeze(literal("FALSE"));
+	literal("TRUE");
+	literal("FALSE");
 
 	assert(literal("TRUE") == TRUE);
 	assert(literal("FALSE") == FALSE);