diff --git a/qbs/modules/libclang/functions.js b/qbs/modules/libclang/functions.js
index 0d3c5afb87a..a3c0198bda1 100644
--- a/qbs/modules/libclang/functions.js
+++ b/qbs/modules/libclang/functions.js
@@ -178,6 +178,7 @@ function toolingParameters(llvmConfig)
         "-Wno-unknown-warning",
         "-Wno-unused-command-line-argument",
         "-fPIC",
+        "-fno-rtti",
         "-pedantic",
         "-Wstring-conversion",
         "-gsplit-dwarf"