diff --git a/build-aux/flatpak/org.gnome.Calendar.json b/build-aux/flatpak/org.gnome.Calendar.json
index d0e395ad..18893ad6 100644
--- a/build-aux/flatpak/org.gnome.Calendar.json
+++ b/build-aux/flatpak/org.gnome.Calendar.json
@@ -28,13 +28,6 @@
         "--filesystem=~/.config/dconf:ro",
         "--env=DCONF_USER_CONFIG_DIR=.config/dconf"
     ],
-    "build-options" : {
-        "cflags" : "-O2 -g",
-        "cxxflags" : "-O2 -g",
-        "env" : {
-            "V" : "1"
-        }
-    },
     "x-run-args" : [
         "--debug"
     ],