diff --git a/libpostproc/postprocess.h b/libpostproc/postprocess.h
index 348ee7cc61..ba456cf3e0 100644
--- a/libpostproc/postprocess.h
+++ b/libpostproc/postprocess.h
@@ -58,13 +58,7 @@ const char *postproc_license(void);
 typedef void pp_context;
 typedef void pp_mode;
 
-#if LIBPOSTPROC_VERSION_INT < (52<<16)
-typedef pp_context pp_context_t;
-typedef pp_mode pp_mode_t;
-extern const char *const pp_help; ///< a simple help text
-#else
 extern const char pp_help[]; ///< a simple help text
-#endif
 
 void  pp_postprocess(const uint8_t * src[3], const int srcStride[3],
                      uint8_t * dst[3], const int dstStride[3],