diff --git a/CMakeLists.txt b/CMakeLists.txt
index 633b1df..3fd0c3f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -314,7 +314,7 @@ endif(WITH_SASL AND LIBSASL2_LIBRARIES AND SASL2_INCLUDE_DIR)
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/rfb/rfbconfig.h.cmakein ${CMAKE_CURRENT_BINARY_DIR}/rfb/rfbconfig.h)
 
 set(LIBVNCSERVER_SOURCES
-    ${LIBVNCSERVER_DIR}/main.c
+    ${LIBVNCSERVER_DIR}/main.cpp
     ${LIBVNCSERVER_DIR}/rfbserver.c
     ${LIBVNCSERVER_DIR}/rfbregion.c
     ${LIBVNCSERVER_DIR}/auth.c