diff --git a/dtool/src/parser-inc/ft2build.h b/dtool/src/parser-inc/ft2build.h
index 726268bee1..47d31e4126 100644
--- a/dtool/src/parser-inc/ft2build.h
+++ b/dtool/src/parser-inc/ft2build.h
@@ -30,6 +30,7 @@
 
 class FT_Face;
 class FT_Library;
+class FT_Bitmap;
 
 #endif