diff --git a/paddle/fluid/platform/bfloat16.h b/paddle/fluid/platform/bfloat16.h
index d1257f853e0e0e2b1541f541731408492ab8e7cf..6cb4901f1dde326f5da5f41dfdfeb29d43595884 100644
--- a/paddle/fluid/platform/bfloat16.h
+++ b/paddle/fluid/platform/bfloat16.h
@@ -16,6 +16,7 @@
 
 #include <stdint.h>
 
+#include <cmath>
 #include <cstring>
 #include <iostream>
 #include <limits>