diff --git a/build/jam/BuildSetup b/build/jam/BuildSetup
index 5298925c37..e980e5485f 100644
--- a/build/jam/BuildSetup
+++ b/build/jam/BuildSetup
@@ -273,6 +273,11 @@ if $(HAIKU_GCC_VERSION[1]) >= 3 {
 
 if $(HAIKU_GCC_VERSION[1]) >= 4 {
 	HAIKU_C++FLAGS += -Wno-deprecated ;
+
+	if $(HAIKU_GCC_VERSION[2]) >= 3 {
+		HAIKU_KERNEL_CCFLAGS += -ffreestanding ;
+		HAIKU_KERNEL_C++FLAGS += -ffreestanding ;
+	}
 }
 
 HAIKU_KERNEL_PIC_CCFLAGS = -fno-pic ;