diff --git a/winpr/libwinpr/smartcard/CMakeLists.txt b/winpr/libwinpr/smartcard/CMakeLists.txt
index 45eb7c5b3..7628e4efc 100644
--- a/winpr/libwinpr/smartcard/CMakeLists.txt
+++ b/winpr/libwinpr/smartcard/CMakeLists.txt
@@ -30,7 +30,7 @@ set(${MODULE_PREFIX}_SRCS
 	smartcard_pcsc.h)
 
 if(WIN32)
-        list(${MODULE_PREFIX}_SRCS APPEND
+        list(APPEND ${MODULE_PREFIX}_SRCS
                 smartcard_winscard.c
                 smartcard_winscard.h)
 endif()