diff --git a/tools/mkspecs/iphonedevice-llvm/qmake.conf b/tools/mkspecs/iphonedevice-llvm/qmake.conf
index 67037f6ce8..7a57b27d3b 100644
--- a/tools/mkspecs/iphonedevice-llvm/qmake.conf
+++ b/tools/mkspecs/iphonedevice-llvm/qmake.conf
@@ -13,7 +13,7 @@ TEMPLATE                  = app
 CONFIG                   += hide_symbols warn_on dwarf2 app_bundle incremental global_init_link_order lib_version_first plugin_no_soname link_prl
 QMAKE_INCREMENTAL_STYLE   = sublib
 
-QMAKE_CC                  = llvm-gcc -std=c99 -arch armv6 -mno-thumb -arch armv7 -mthumb
+QMAKE_CC                  = llvm-gcc -arch armv6 -mno-thumb -arch armv7 -mthumb
 QMAKE_CXX                 = llvm-g++ -arch armv6 -mno-thumb -arch armv7 -mthumb
 
 QMAKE_RESOURCE            =