diff --git a/src/add-ons/kernel/network/ppp/ipcp/Jamfile b/src/add-ons/kernel/network/ppp/ipcp/Jamfile
index ae84a4ea9e..02253d7285 100644
--- a/src/add-ons/kernel/network/ppp/ipcp/Jamfile
+++ b/src/add-ons/kernel/network/ppp/ipcp/Jamfile
@@ -7,6 +7,11 @@ UsePrivateHeaders [ FDirName kernel util ] ;
 UseHeaders [ FDirName $(OBOS_TOP) src add-ons kernel network ppp shared libkernelppp headers ] ;
 
 
+{
+	SubDirC++Flags -fno-rtti ;
+}
+
+
 R5KernelAddon ipcp : kernel obos_network ppp :
 	# imported from libnet
 	inet_addr.c
diff --git a/src/add-ons/kernel/network/ppp/modem/Jamfile b/src/add-ons/kernel/network/ppp/modem/Jamfile
index abad4e4bf0..1d3c2b791b 100644
--- a/src/add-ons/kernel/network/ppp/modem/Jamfile
+++ b/src/add-ons/kernel/network/ppp/modem/Jamfile
@@ -7,6 +7,11 @@ UsePrivateHeaders [ FDirName kernel util ] ;
 UseHeaders [ FDirName $(OBOS_TOP) src add-ons kernel network ppp shared libkernelppp headers ] ;
 
 
+{
+	SubDirC++Flags -fno-rtti ;
+}
+
+
 R5KernelAddon modem : kernel obos_network ppp :
 	modem.cpp
 	ModemDevice.cpp
diff --git a/src/add-ons/kernel/network/ppp/pap/Jamfile b/src/add-ons/kernel/network/ppp/pap/Jamfile
index 514d16beac..f6e5ecfc40 100644
--- a/src/add-ons/kernel/network/ppp/pap/Jamfile
+++ b/src/add-ons/kernel/network/ppp/pap/Jamfile
@@ -7,6 +7,11 @@ UsePrivateHeaders [ FDirName kernel util ] ;
 UseHeaders [ FDirName $(OBOS_TOP) src add-ons kernel network ppp shared libkernelppp headers ] ;
 
 
+{
+	SubDirC++Flags -fno-rtti ;
+}
+
+
 R5KernelAddon pap : kernel obos_network ppp :
 	pap.cpp
 	Protocol.cpp
diff --git a/src/add-ons/kernel/network/ppp/pppoe/Jamfile b/src/add-ons/kernel/network/ppp/pppoe/Jamfile
index 4dc1c7f053..7d39af7c12 100644
--- a/src/add-ons/kernel/network/ppp/pppoe/Jamfile
+++ b/src/add-ons/kernel/network/ppp/pppoe/Jamfile
@@ -7,6 +7,11 @@ UsePrivateHeaders [ FDirName kernel util ] ;
 UseHeaders [ FDirName $(OBOS_TOP) src add-ons kernel network ppp shared libkernelppp headers ] ;
 
 
+{
+	SubDirC++Flags -fno-rtti ;
+}
+
+
 R5KernelAddon pppoe : kernel obos_network ppp :
 	pppoe.cpp
 	PPPoEDevice.cpp
diff --git a/src/add-ons/kernel/network/ppp/shared/libkernelppp/Jamfile b/src/add-ons/kernel/network/ppp/shared/libkernelppp/Jamfile
index dae7380a00..43c0167ee8 100644
--- a/src/add-ons/kernel/network/ppp/shared/libkernelppp/Jamfile
+++ b/src/add-ons/kernel/network/ppp/shared/libkernelppp/Jamfile
@@ -6,6 +6,11 @@ UsePrivateHeaders [ FDirName kernel util ] ;
 UseHeaders [ FDirName $(OBOS_TOP) src add-ons kernel network ppp shared libkernelppp headers ] ;
 
 
+{
+	SubDirC++Flags -fno-rtti ;
+}
+
+
 R5KernelStaticLibrary kernelppp :
 	kernel_cpp.cpp