diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 258d692b126..6a14387640e 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -2831,7 +2831,7 @@ getMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
       Mnemonic == "umlal" || Mnemonic == "orr" || Mnemonic == "mvn" ||
       Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
       Mnemonic == "sbc" || Mnemonic == "mla" || Mnemonic == "umull" ||
-      Mnemonic == "eor" || Mnemonic == "smlal" ||
+      Mnemonic == "eor" || Mnemonic == "smlal" || Mnemonic == "neg" ||
       // FIXME: We need a better way. This really confused Thumb2
       // parsing for 'mov'.
       (Mnemonic == "mov" && !isThumbOne())) {
diff --git a/test/MC/ARM/basic-thumb-instructions.s b/test/MC/ARM/basic-thumb-instructions.s
index 0e4c5807402..5e45c3c7dc2 100644
--- a/test/MC/ARM/basic-thumb-instructions.s
+++ b/test/MC/ARM/basic-thumb-instructions.s
@@ -339,3 +339,11 @@ _func:
         mvns r6, r3
 
 @ CHECK: mvns	r6, r3                  @ encoding: [0xde,0x43]
+
+
+@------------------------------------------------------------------------------
+@ NEG
+@------------------------------------------------------------------------------
+        negs r3, r4
+
+@ CHECK: rsbs	r3, r4, #0              @ encoding: [0x63,0x42]