diff --git a/documentation/Doxyfile b/documentation/Doxyfile
index f07a768d9..b511ee89a 100644
--- a/documentation/Doxyfile
+++ b/documentation/Doxyfile
@@ -177,7 +177,7 @@ RECURSIVE              = YES
 EXCLUDE                =
 EXCLUDE_SYMLINKS       = NO
 EXCLUDE_PATTERNS       =
-EXCLUDE_SYMBOLS        =
+EXCLUDE_SYMBOLS        = *::internal::*
 EXAMPLE_PATH           = sample
 EXAMPLE_PATTERNS       = *
 EXAMPLE_RECURSIVE      = NO