diff --git a/known_content/generic.json b/known_content/generic.json
index 2d1edf8..6dd96b5 100644
--- a/known_content/generic.json
+++ b/known_content/generic.json
@@ -38,7 +38,8 @@
       "fd8b021f0236e487bfee13bf8f0ae98760abc492f7ca3023e292631979e135cb4ccb0c89b6234971b060ad72c0ca4474cbb5092c6c7a3255d81a54a36277b486",
       "235479f42cbbe0a4b0100167fece0d14c9b47d272b3ba8322bcfe8539f055bf31d500e7b2995cc968ebf73034e039f59c5f0f9410428663034bf119d74b5672c",
       "a85e09c3b5dbb560f4e03ba880047dbc8b4999a64c1f54fbfbca17ee0bcbed3bc6708d699190b56668e464a59358d6b534c3963a1329ba01db21075ef5bedace",
-      "27656d6106a6da0c84174ba7a6307e6f1c4b3f2cc085c8466b6a25d54331035dabc7081aac208d960d8d37c5577547628c0d1c4b77bb4cf254c71859673feec1"
+      "27656d6106a6da0c84174ba7a6307e6f1c4b3f2cc085c8466b6a25d54331035dabc7081aac208d960d8d37c5577547628c0d1c4b77bb4cf254c71859673feec1",
+      "41edf618eb0ba5158411c5ac3e900904bbf36cbb4be1347dc5281f4722244ad0b9880f0cf4fbec70089b0b7ba3b8aae6f92be7379e72db325c2802250b5e529e"
     ]
   },
   "1px_png": {
@@ -55,5 +56,11 @@
     "entries": [
       "cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e"
     ]
+  },
+  "single_space": {
+    "description": "Empty file with a single space",
+    "entries": [
+      "f90ddd77e400dfe6a3fcf479b00b1ee29e7015c5bb8cd70f5f15b4886cc339275ff553fc8a053f8ddc7324f45168cffaf81f8c3ac93996f6536eef38e5e40768"
+    ]
   }
 }