diff --git a/gas/ChangeLog b/gas/ChangeLog
index a1a4224a647..18ceb94f199 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2014-11-03  Nick Clifton  <nickc@redhat.com>
+
+	* config/tc-msp430.c (msp430_srcoperand): Fix range test for
+	20-bit values.
+
 2014-10-31  Andrew Pinski  <apinski@cavium.com>
             Naveen H.S  <Naveen.Hurugalawadi@caviumnetworks.com>
 
diff --git a/gas/config/tc-msp430.c b/gas/config/tc-msp430.c
index 1398b8c2acd..25ec0ee45b7 100644
--- a/gas/config/tc-msp430.c
+++ b/gas/config/tc-msp430.c
@@ -1132,7 +1132,7 @@ msp430_srcoperand (struct msp430_operand_s * op,
 
 	  if (allow_20bit_values)
 	    {
-	      if (op->exp.X_add_number > 0xfffff || op->exp.X_add_number < - (0x7ffff))
+	      if (op->exp.X_add_number > 0xfffff || op->exp.X_add_number < -524288)
 		{
 		  as_bad (_("value 0x%x out of extended range."), x);
 		  return 1;