diff --git a/src/Doxyfile b/src/Doxyfile
index 81ddf89d7..738c3890b 100644
--- a/src/Doxyfile
+++ b/src/Doxyfile
@@ -225,6 +225,7 @@ INCLUDE_PATH           =
 INCLUDE_FILE_PATTERNS  = 
 PREDEFINED             = "LIST_OF(element_T)=element_T list" \
                          CONFIG_DEBUG \
+                         CONFIG_UTF8 \
                          HAVE_VARIADIC_MACROS
 EXPAND_AS_DEFINED      = 
 SKIP_FUNCTION_MACROS   = YES