diff --git a/lfs/ncurses b/lfs/ncurses
index dd6e56f1c..1d8fd40d2 100644
--- a/lfs/ncurses
+++ b/lfs/ncurses
@@ -96,7 +96,7 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 ifneq "$(ROOT)" ""
 	mkdir -pv /tools/lib/pkgconfig/
 endif
-	cd $(DIR_APP) && ./configure $(EXTRA_CONFIG)
+	cd $(DIR_APP) && CPPFLAGS=-P ./configure $(EXTRA_CONFIG)
 	cd $(DIR_APP) && make $(MAKETUNING)
 	cd $(DIR_APP) && make install