diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 986984d2e5..c09965ff1e 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2017-01-06  Yao Qi  <yao.qi@linaro.org>
+
+	* dfp.h: Include "dboulest.h" and "expression.h".
+
 2017-01-06  Yao Qi  <yao.qi@linaro.org>
 
 	* ax-gdb.h: Include "ax.h".
diff --git a/gdb/dfp.h b/gdb/dfp.h
index 9f37b8ceab..c8ff5a1736 100644
--- a/gdb/dfp.h
+++ b/gdb/dfp.h
@@ -25,6 +25,9 @@
 #ifndef DFP_H
 #define DFP_H
 
+#include "doublest.h"    /* For DOUBLEST.  */
+#include "expression.h"  /* For enum exp_opcode.  */
+
 /* When using decimal128, this is the maximum string length + 1
  * (value comes from libdecnumber's DECIMAL128_String constant).  */
 #define MAX_DECIMAL_STRING  43