diff --git a/opt.cpp b/opt.cpp
index afc0ae1f..7da0b9ee 100644
--- a/opt.cpp
+++ b/opt.cpp
@@ -585,7 +585,9 @@ Optimize(llvm::Module *module, int optLevel) {
         llvm::initializeScalarOpts(*registry);
         llvm::initializeIPO(*registry);
         llvm::initializeAnalysis(*registry);
+#if ISPC_LLVM_VERSION <= ISPC_LLVM_3_7
         llvm::initializeIPA(*registry);
+#endif
         llvm::initializeTransformUtils(*registry);
         llvm::initializeInstCombine(*registry);
         llvm::initializeInstrumentation(*registry);