diff --git a/npa/Doxyfile.in b/npa/Doxyfile.in
index ed5e863..033f3b6 100644
--- a/npa/Doxyfile.in
+++ b/npa/Doxyfile.in
@@ -2,12 +2,11 @@ PROJECT_NAME           = @PACKAGE_NAME@
 PROJECT_NUMBER         = @PACKAGE_VERSION@
 OUTPUT_DIRECTORY       = @builddir@/doc
 STRIP_FROM_PATH        = @top_srcdir@/src
-INPUT                  = @top_srcdir@/src 
+INPUT                  = @top_srcdir@/src/npa
 FILE_PATTERNS          = *.h
 RECURSIVE              = YES
 EXAMPLE_PATH           = @top_srcdir@/src
 GENERATE_HTML          = YES
 GENERATE_TAGFILE       = @builddir@/doc/$(PROJECT).tag
-EXCLUDE_PATTERNS       = */opensc/*
 GENERATE_XML           = YES
 XML_OUTPUT             = xml