diff --git a/project.json b/project.json
index 9ea9c47f5e..a0553fa17a 100644
--- a/project.json
+++ b/project.json
@@ -6,6 +6,13 @@
         "description": "Entity Component System written in C99/C++11",
         "amalgamate": true
     },
+    "dependee": {
+        "lang.c": {
+            "${cfg sanitize}": {
+                "defines": ["FLECS_SANITIZE"]
+            }
+        }
+    },
     "lang.c": {
         "${os linux}": {
             "lib": ["rt", "pthread"]