diff --git a/CMakeLists.txt b/CMakeLists.txt
index 80ef66877..8d6deef30 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -667,14 +667,8 @@ if (HB_HAVE_INTROSPECTION)
       -I${PROJECT_BINARY_DIR}/src
       ${hb_includedir_cflags}
       ${hb_defines_cflags}
-      -DHB_H
-      -DHB_H_IN
-      -DHB_OT_H
-      -DHB_OT_H_IN
-      -DHB_AAT_H
-      -DHB_AAT_H_IN
-      -DHB_GOBJECT_H
-      -DHB_GOBJECT_H_IN
+      -DHB_NO_SINGLE_HEADER_ERROR
+      -DHB_HAVE_GOBJECT
       -DHB_EXTERN=
       --cflags-end
       --library=harfbuzz-gobject