diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs
index 2bfb73f05d169..2ae781cad9ec8 100644
--- a/src/tools/compiletest/src/runtest.rs
+++ b/src/tools/compiletest/src/runtest.rs
@@ -1425,7 +1425,7 @@ impl<'test> TestCx<'test> {
         } else if aux_type.is_some() {
             panic!("aux_type {aux_type:?} not expected");
         } else if aux_props.no_prefer_dynamic {
-            (AuxType::Dylib, None)
+            (AuxType::Lib, None)
         } else if self.config.target.contains("emscripten")
             || (self.config.target.contains("musl")
                 && !aux_props.force_host
diff --git a/tests/ui/compiletest-self-test/auxiliary/no_prefer_dynamic_lib.rs b/tests/ui/compiletest-self-test/auxiliary/no_prefer_dynamic_lib.rs
new file mode 100644
index 0000000000000..6688dadbab24f
--- /dev/null
+++ b/tests/ui/compiletest-self-test/auxiliary/no_prefer_dynamic_lib.rs
@@ -0,0 +1,10 @@
+//@ no-prefer-dynamic
+
+//! Since this is `no-prefer-dynamic` we expect compiletest to _not_ look for
+//! this create as `libno_prefer_dynamic_lib.so`.
+
+#![crate_type = "rlib"]
+
+pub fn return_42() -> i32 {
+    42
+}
diff --git a/tests/ui/compiletest-self-test/no-prefer-dynamic-means-no-so.rs b/tests/ui/compiletest-self-test/no-prefer-dynamic-means-no-so.rs
new file mode 100644
index 0000000000000..e9c1bdd794715
--- /dev/null
+++ b/tests/ui/compiletest-self-test/no-prefer-dynamic-means-no-so.rs
@@ -0,0 +1,10 @@
+//! Since we and our aux-crate is `no-prefer-dynamic` we expect compiletest to
+//! _not_ look for `libno_prefer_dynamic_lib.so`.
+
+//@ check-pass
+//@ no-prefer-dynamic
+//@ aux-crate: no_prefer_dynamic_lib=no_prefer_dynamic_lib.rs
+
+fn main() {
+    no_prefer_dynamic_lib::return_42();
+}