diff --git a/data/schemas/keyboard.jsonschema b/data/schemas/keyboard.jsonschema
index c55d66e6bb..2c6a7f527c 100644
--- a/data/schemas/keyboard.jsonschema
+++ b/data/schemas/keyboard.jsonschema
@@ -34,7 +34,7 @@
         },
         "development_board": {
             "type": "string",
-            "enum": ["promicro", "elite_c", "proton_c", "kb2040", "promicro_rp2040", "blok", "bit_c_pro", "bluepill", "blackpill_f401", "blackpill_f411"]
+            "enum": ["promicro", "elite_c", "proton_c", "kb2040", "promicro_rp2040", "blok", "bit_c_pro", "stemcell", "bluepill", "blackpill_f401", "blackpill_f411"]
         },
         "pin_compatible": {
             "type": "string",