diff --git a/externals/cryptopp/CMakeLists.txt b/externals/cryptopp/CMakeLists.txt
index b17883d69..d927ca079 100644
--- a/externals/cryptopp/CMakeLists.txt
+++ b/externals/cryptopp/CMakeLists.txt
@@ -302,6 +302,9 @@ set(cryptopp_SOURCES
         ${SRC_DIR}/neon_simd.cpp
         ${SRC_DIR}/oaep.cpp
         ${SRC_DIR}/osrng.cpp
+        ${SRC_DIR}/ppc_power7.cpp
+        ${SRC_DIR}/ppc_power8.cpp
+        ${SRC_DIR}/ppc_power9.cpp
         ${SRC_DIR}/ppc_simd.cpp
         ${SRC_DIR}/pubkey.cpp
         ${SRC_DIR}/queue.cpp