diff --git a/python/paddle/fluid/transpiler/memory_optimization_transpiler.py b/python/paddle/fluid/transpiler/memory_optimization_transpiler.py
index ee8cde441ffc63ebd923bd579a7f44d1e2218cf0..31d8e44cececd39cf88c6149fd89d1d1d0e82c1d 100755
--- a/python/paddle/fluid/transpiler/memory_optimization_transpiler.py
+++ b/python/paddle/fluid/transpiler/memory_optimization_transpiler.py
@@ -357,7 +357,7 @@ class ControlFlowGraph(object):
                                                      is_forward).dtype()
                         if x_dtype != cache_dtype:
                             if PRINT_LOG:
-                                print("x_dtype and cache_dtype are different")
+                                print("x_dtype and cache_dtype are different!")
                             continue
 
                         if not compare_shape(x_shape, cache_shape, level):