--- _imagingft.c
+++ _imagingft.c
@@ -70,7 +70,13 @@
     const char* message;
 } ft_errors[] =
 
+#if defined(USE_FREETYPE_2_1)
+/* freetype 2.1 and newer */
+#include <fterrors.h>
+#else
+/* freetype 2.0 */
 #include <freetype/fterrors.h>
+#endif
 
 /* -------------------------------------------------------------------- */
 /* font objects */