diff --git a/ffi/capi/src/errors.rs b/ffi/capi/src/errors.rs
index dcf3b1b3468..c276b904393 100644
--- a/ffi/capi/src/errors.rs
+++ b/ffi/capi/src/errors.rs
@@ -8,9 +8,12 @@ use ffi::*;
 #[diplomat::abi_rename = "icu4x_{0}_mv1"]
 #[diplomat::attr(auto, namespace = "icu4x")]
 pub mod ffi {
-    use crate::calendar::ffi::AnyCalendarKind;
+    #[cfg(feature = "datetime")]
     use diplomat_runtime::DiplomatOption;
 
+    #[cfg(feature = "datetime")]
+    use crate::calendar::ffi::AnyCalendarKind;
+
     #[derive(Debug, PartialEq, Eq)]
     #[repr(C)]
     #[diplomat::rust_link(icu::provider::DataError, Struct, compact)]