diff --git a/sqlx-core/src/type_checking.rs b/sqlx-core/src/type_checking.rs
index 9e9ddb6ac..f10dc79dc 100644
--- a/sqlx-core/src/type_checking.rs
+++ b/sqlx-core/src/type_checking.rs
@@ -413,7 +413,7 @@ macro_rules! impl_type_checking {
                     $(
                         if <$bigdecimal_ty as sqlx_core::types::Type<$database>>::type_info() == *info {
                             if cfg!(feature = "rust_decimal") {
-                                return Err($crate::type_checking::Error::AmbiguousDateTimeType {
+                                return Err($crate::type_checking::Error::AmbiguousNumericType {
                                     fallback: stringify!($bigdecimal_ty),
                                 });
                             }
@@ -425,7 +425,7 @@ macro_rules! impl_type_checking {
                     $(
                         if <$bigdecimal_ty as sqlx_core::types::Type<$database>>::compatible(info) {
                             if cfg!(feature = "rust_decimal") {
-                                return Err($crate::type_checking::Error::AmbiguousDateTimeType {
+                                return Err($crate::type_checking::Error::AmbiguousNumericType {
                                     fallback: stringify!($bigdecimal_ty),
                                 });
                             }
diff --git a/tests/postgres/macros.rs b/tests/postgres/macros.rs
index 07ae96201..04c1fe9d1 100644
--- a/tests/postgres/macros.rs
+++ b/tests/postgres/macros.rs
@@ -295,6 +295,7 @@ async fn query_by_bigdecimal() -> anyhow::Result<()> {
     let decimal = "1234".parse::<BigDecimal>()?;
     let ref tuple = ("51245.121232".parse::<BigDecimal>()?,);
 
+    #[cfg_attr(feature = "rust_decimal", allow(deprecated))] // TODO: upgrade to `expect`
     let result = sqlx::query!(
         "SELECT * from (VALUES(1234.0)) decimals(decimal)\
          where decimal in ($1, $2, $3, $4, $5, $6, $7)",