diff --git a/Doxyfile b/Doxyfile
index e5b6a387..70147a73 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -654,7 +654,7 @@ EXCLUDE_SYMLINKS       = NO
 # against the file with absolute path, so to exclude all test directories
 # for example use the pattern */test/*
 
-EXCLUDE_PATTERNS       =
+EXCLUDE_PATTERNS       = *.d
 
 # The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
 # (namespaces, classes, functions, etc.) that should be excluded from the