diff --git a/configure.ac b/configure.ac
index 78c906453d2ad7114615de28724be1ea20199924..25fc7741612721b54f2388881f4faa288dfaae8a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -104,7 +104,7 @@ CLANG_CXX_COMMONFLAGS="$($LLVM_CONFIG --cppflags) -fPIC"
 CLANG_CFLAGS="$($LLVM_CONFIG --cppflags) -fPIC"
 CLANG_INCDIR=$($LLVM_CONFIG --includedir)
 CLANG_LINKFLAGS="$($LLVM_CONFIG --ldflags)"
-CLANG_CXXFLAGS="$($LLVM_CONFIG --cxxflags) -fPIC"
+CLANG_CXXFLAGS="$($LLVM_CONFIG --cxxflags) -fPIC -fno-rtti"
 CLANG_SYSLIBS="$($LLVM_CONFIG --system-libs)"
 CLANG_BIN_DIR="$($LLVM_CONFIG --bindir)"
 if test "$LLVM_SHARED_MODE" = "shared"; then