diff --git a/packaging/flatpak/com.freerdp.FreeRDP.json b/packaging/flatpak/com.freerdp.FreeRDP.json
index 6004b7ba1..38c5f17e0 100644
--- a/packaging/flatpak/com.freerdp.FreeRDP.json
+++ b/packaging/flatpak/com.freerdp.FreeRDP.json
@@ -130,6 +130,7 @@
 					"-DWITH_MANPAGES:BOOL=OFF",
 					"-DWITH_GSSAPI:BOOL=OFF",
 					"-DWITH_PCSC:BOOL=ON",
+					"-DWITH_PKCS11:BOOL=ON",
 					"-DWITH_SWSCALE:BOOL=ON",
 					"-DWITH_SERVER:BOOL=ON",
 					"-DWITH_SAMPLE:BOOL=ON",