diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index 6f0fbf66b73..6ba6340040b 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -336,6 +336,7 @@ int main(int argc, char **argv) {
 
   InitializeAllTargets();
   InitializeAllTargetMCs();
+  InitializeAllAsmPrinters();
 
   // Initialize passes
   PassRegistry &Registry = *PassRegistry::getPassRegistry();