diff --git a/legacy/emotion/doc/Doxyfile.in b/legacy/emotion/doc/Doxyfile.in
index 97dfe776ef..29cdd0e201 100644
--- a/legacy/emotion/doc/Doxyfile.in
+++ b/legacy/emotion/doc/Doxyfile.in
@@ -80,7 +80,7 @@ REFERENCED_BY_RELATION = YES
 REFERENCES_RELATION    = YES
 ALPHABETICAL_INDEX     = YES
 COLS_IN_ALPHA_INDEX    = 2
-IGNORE_PREFIX          = 
+IGNORE_PREFIX          = emotion_ _emotion_ Emotion_ _Emotion_ EMOTION_ _EMOTION_
 GENERATE_TREEVIEW      = NO
 TREEVIEW_WIDTH         = 250
 GENERATE_LATEX         = YES