diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 3096719b..2a052f85 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -94,12 +94,12 @@ if(MERCURY_USE_XDR)
   if(NOT HG_HAS_RPC_XDR_H AND NOT APPLE AND NOT WIN32)
     find_package(TIRPC REQUIRED)
     message(STATUS "TIRPC include directory: ${TIRPC_INCLUDE_DIRS}")
-    set(MERCURY_INT_INCLUDE_DEPENDENCIES
-      ${MERCURY_INT_INCLUDE_DEPENDENCIES}
+    set(MERCURY_EXT_INCLUDE_DEPENDENCIES
+      ${MERCURY_EXT_INCLUDE_DEPENDENCIES}
       ${TIRPC_INCLUDE_DIRS}
     )
-    set(MERCURY_INT_LIB_DEPENDENCIES
-      ${MERCURY_INT_LIB_DEPENDENCIES}
+    set(MERCURY_EXT_LIB_DEPENDENCIES
+      ${MERCURY_EXT_LIB_DEPENDENCIES}
       ${TIRPC_LIBRARIES}
     )
   endif()