diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 01ef568d6e..c1023adf34 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,8 @@
+2016-05-31  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>
+
+	* sh-opc.h (ARCH_SH_HAS_DSP): Make the shifted value an unsigned
+	constant.
+
 2016-05-29  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR gas/20145
diff --git a/opcodes/sh-opc.h b/opcodes/sh-opc.h
index b2bbbfdc48..46ce5ab336 100644
--- a/opcodes/sh-opc.h
+++ b/opcodes/sh-opc.h
@@ -230,7 +230,7 @@ sh_dsp_reg_nums;
 #define arch_sh_no_co	   (1 << 28)  /* Neither FPU nor DSP co-processor.  */
 #define arch_sh_sp_fpu	   (1 << 29)  /* Single precision FPU.  */
 #define arch_sh_dp_fpu	   (1 << 30)  /* Double precision FPU.  */
-#define arch_sh_has_dsp	   (1 << 31)
+#define arch_sh_has_dsp	   (1u << 31)
 #define arch_sh_co_mask    MASK (28, 31)