diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index 8d8d73179e5..c78f97fa607 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -39,6 +39,7 @@
 #include "llvm/Support/SystemUtils.h"
 #include "llvm/Support/TargetRegistry.h"
 #include "llvm/Support/ToolOutputFile.h"
+#include "llvm/Support/TargetSelect.h"
 #include "llvm/MC/SubtargetFeature.h"
 #include "llvm/LinkAllPasses.h"
 #include "llvm/LinkAllVMCore.h"
@@ -564,6 +565,11 @@ int main(int argc, char **argv) {
   llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.
   LLVMContext &Context = getGlobalContext();
 
+  InitializeAllTargets();
+  InitializeAllTargetMCs();
+  InitializeAllAsmPrinters();
+  InitializeAllAsmParsers();
+
   // Initialize passes
   PassRegistry &Registry = *PassRegistry::getPassRegistry();
   initializeCore(Registry);