diff --git a/Jamrules b/Jamrules
index be2131e0f9..75fce209d3 100644
--- a/Jamrules
+++ b/Jamrules
@@ -85,6 +85,7 @@ switch $(TARGET_PLATFORM)
 {
 	case r5 :
 	{
+		CCFLAGS += -DCOMPILE_FOR_R5 ;
 		C++FLAGS += -DCOMPILE_FOR_R5 ;
 	}
 	case bone :