diff --git a/configure.ac b/configure.ac
index ac465028b2bc3d63bcb6bf094c35b036cda571e2..41df93399eb2577b36acc3ff1d940683592af055 100644
--- a/configure.ac
+++ b/configure.ac
@@ -97,7 +97,7 @@ esac
 
 LLVM_CONFIG="$LLVM_CONFIG $LLVM_STATIC"
 
-CLANG_CXX_COMMONFLAGS="$($LLVM_CONFIG --cppflags) -fPIC -fno-rtti"
+CLANG_CXX_COMMONFLAGS="$($LLVM_CONFIG --cppflags) -fPIC"
 CLANG_CFLAGS="$($LLVM_CONFIG --cppflags) -fPIC"
 CLANG_INCDIR=$($LLVM_CONFIG --includedir)
 CLANG_LINKFLAGS="$($LLVM_CONFIG --ldflags)"