diff --git a/paddle/fluid/operators/logical_op.cc b/paddle/fluid/operators/logical_op.cc
index db109f5cd053d84718ac85bd4693ecece12ce172..26970db8d2af62bb06fce4eb1a1f21fd41617bd1 100644
--- a/paddle/fluid/operators/logical_op.cc
+++ b/paddle/fluid/operators/logical_op.cc
@@ -146,6 +146,6 @@ REGISTER_UNARY_LOGICAL_OP(logical_not, "$$Out = !X$$");
 REGISTER_UNARY_LOGICAL_KERNEL(logical_not, CPU,
                               paddle::operators::LogicalNotFunctor);
 REGISTER_BINARY_LOGICAL_OP(logical_xor,
-                           "$$Out = (X || Y) \\, \\&\\& \\, !(X \\&\\& Y)$$");
+                           "$$Out = (X || Y) \\&\\& !(X \\&\\& Y)$$");
 REGISTER_BINARY_LOGICAL_KERNEL(logical_xor, CPU,
                                paddle::operators::LogicalXorFunctor);