diff --git a/libqpdf/RC4.cc b/libqpdf/RC4_native.cc
similarity index 100%
rename from libqpdf/RC4.cc
rename to libqpdf/RC4_native.cc
diff --git a/libqpdf/qpdf/RC4.hh b/libqpdf/qpdf/RC4_native.hh
similarity index 100%
rename from libqpdf/qpdf/RC4.hh
rename to libqpdf/qpdf/RC4_native.hh