diff --git a/libpostproc/postprocess.c b/libpostproc/postprocess.c
index 1e843422be..4890bf841a 100644
--- a/libpostproc/postprocess.c
+++ b/libpostproc/postprocess.c
@@ -694,7 +694,11 @@ static inline void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int
 
 /* -pp Command line Help
 */
+#if LIBPOSTPROC_VERSION_INT < (52<<16)
 const char *const pp_help=
+#else
+const char pp_help[] =
+#endif
 "Available postprocessing filters:\n"
 "Filters                        Options\n"
 "short  long name       short   long option     Description\n"
diff --git a/libpostproc/postprocess.h b/libpostproc/postprocess.h
index 52211c5739..cd0bc89a9b 100644
--- a/libpostproc/postprocess.h
+++ b/libpostproc/postprocess.h
@@ -42,7 +42,11 @@
 typedef void pp_context_t;
 typedef void pp_mode_t;
 
+#if LIBPOSTPROC_VERSION_INT < (52<<16)
 extern const char *const pp_help; ///< a simple help text
+#else
+extern const char pp_help[]; ///< a simple help text
+#endif
 
 void  pp_postprocess(uint8_t * src[3], int srcStride[3],
                  uint8_t * dst[3], int dstStride[3],