diff --git a/pkg/fftypes/ffi_param_validator.go b/pkg/fftypes/ffi_param_validator.go
index fe260cf..f0ed76b 100644
--- a/pkg/fftypes/ffi_param_validator.go
+++ b/pkg/fftypes/ffi_param_validator.go
@@ -77,6 +77,7 @@ func (v *BaseFFIParamValidator) GetMetaSchema() *jsonschema.Schema {
 								"enum": [
 									"boolean",
 									"integer",
+									"number",
 									"string",
 									"array",
 									"object"