diff --git a/utils/TableGen/AsmWriterEmitter.cpp b/utils/TableGen/AsmWriterEmitter.cpp
index 2cd17d9..c168a91 100644
--- a/utils/TableGen/AsmWriterEmitter.cpp
+++ b/utils/TableGen/AsmWriterEmitter.cpp
@@ -362,7 +362,7 @@
   std::string AggregateString;
   AggregateString += '\0';
   
-  O << "  static unsigned short OpStrIdxs[] = {\n";
+  O << "  static const unsigned short OpStrIdxs[] = {\n";
   for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i) {
     AsmWriterInst *AWI = CGIAWIMap[NumberedInstructions[i]];
     unsigned Idx;