diff --git a/gem/frank-skeleton/frankify.xcconfig.tt b/gem/frank-skeleton/frankify.xcconfig.tt
index dac84ce..0e9e247 100644
--- a/gem/frank-skeleton/frankify.xcconfig.tt
+++ b/gem/frank-skeleton/frankify.xcconfig.tt
@@ -3,4 +3,4 @@ INSTALL_PATH = /./
 FRANK_CORE_LDFLAGS = -all_load -ObjC -framework CFNetwork -framework Security <%= @libs.map { |lib| "-l#{lib}" }.join(' ') %>
 FRANK_CORE_MAC_LDFLAGS = -all_load -ObjC -framework CFNetwork -framework Security <%= @libsMac.map { |lib| "-l#{lib}" }.join(' ') %>
 
-GCC_PREPROCESSOR_DEFINITIONS_NOT_USED_IN_PRECOMPS = FRANKIFIED
+GCC_PREPROCESSOR_DEFINITIONS = $(inherited) FRANKIFIED=1