diff --git a/src/sema/builtin.rs b/src/sema/builtin.rs
index 91d68758a..6b369f712 100644
--- a/src/sema/builtin.rs
+++ b/src/sema/builtin.rs
@@ -1445,7 +1445,11 @@ pub(super) fn resolve_method_call(
     let deref_ty = expr_ty.deref_memory();
     let funcs: Vec<_> = BUILTIN_METHODS
         .iter()
-        .filter(|func| func.name == id.name && func.method.contains(deref_ty))
+        .filter(|func| {
+            func.name == id.name
+                && func.method.contains(deref_ty)
+                && (func.target.is_empty() || func.target.contains(&ns.target))
+        })
         .collect();
 
     // try to resolve the arguments, give up if there are any errors
@@ -1523,6 +1527,19 @@ pub(super) fn resolve_method_call(
     }
 
     if funcs.is_empty() {
+        if BUILTIN_METHODS
+            .iter()
+            .any(|func| func.name == id.name && func.method.contains(deref_ty))
+        {
+            diagnostics.push(Diagnostic::error(
+                id.loc,
+                format!(
+                    "method '{}' is not available on target {}",
+                    id.name, ns.target
+                ),
+            ));
+            return Err(());
+        }
         Ok(None)
     } else {
         diagnostics.extend(call_diagnostics);