diff --git a/ChangeLog.d/fix-driver-schema-check.txt b/ChangeLog.d/fix-driver-schema-check.txt
new file mode 100644
index 0000000..9b6d8ac
--- /dev/null
+++ b/ChangeLog.d/fix-driver-schema-check.txt
@@ -0,0 +1,3 @@
+Bugfix
+   * Fix invalid JSON schemas for driver descriptions used by
+     generate_driver_wrappers.py.
diff --git a/scripts/data_files/driver_jsons/driver_opaque_schema.json b/scripts/data_files/driver_jsons/driver_opaque_schema.json
index 933eb07..b05da00 100644
--- a/scripts/data_files/driver_jsons/driver_opaque_schema.json
+++ b/scripts/data_files/driver_jsons/driver_opaque_schema.json
@@ -11,7 +11,7 @@
     },
     "type": {
       "type": "string",
-      "const": ["opaque"]
+      "const": "opaque"
     },
     "location": {
       "type": ["integer","string"],
diff --git a/scripts/data_files/driver_jsons/driver_transparent_schema.json b/scripts/data_files/driver_jsons/driver_transparent_schema.json
index f5d91eb..1791163 100644
--- a/scripts/data_files/driver_jsons/driver_transparent_schema.json
+++ b/scripts/data_files/driver_jsons/driver_transparent_schema.json
@@ -11,7 +11,7 @@
     },
     "type": {
       "type": "string",
-      "const": ["transparent"]
+      "const": "transparent"
     },
     "mbedtls/h_condition": {
       "type": "string"