diff --git a/src/Makefile.am b/src/Makefile.am
index 938c5965..8468c936 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -14,5 +14,5 @@ liblol_a_SOURCES = \
     \
     debugfps.cpp debugfps.h debugsphere.cpp debugsphere.h \
     debugrecord.cpp debugrecord.h debugstats.cpp debugstats.h
-liblol_a_CXXFLAGS = @LOL_CFLAGS@
+liblol_a_CPPFLAGS = @LOL_CFLAGS@
 
diff --git a/tools/Makefile.am b/tools/Makefile.am
index e4cec9fa..fcf8eca4 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -2,7 +2,7 @@
 noinst_PROGRAMS = $(make_font)
 
 make_font_SOURCES = make-font.cpp
-make_font_CXXFLAGS = @CACA_CFLAGS@
+make_font_CPPFLAGS = @CACA_CFLAGS@
 make_font_LDFLAGS = @CACA_LIBS@
 
 if USE_CACA