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--- a/Makefile.am
+++ b/Makefile.am
@@ -66,8 +66,8 @@
     libupnpp/log.cpp \
     libupnpp/log.h \
     libupnpp/log.hxx \
-    libupnpp/md5.cxx \
-    libupnpp/md5.hxx \
+    libupnpp/md5.cpp \
+    libupnpp/md5.h \
     libupnpp/smallut.cpp \
     libupnpp/smallut.h \
     libupnpp/soaphelp.cxx \