diff --git a/src/shims/unix/fs.rs b/src/shims/unix/fs.rs
index dbd9ef1042..5682fb659e 100644
--- a/src/shims/unix/fs.rs
+++ b/src/shims/unix/fs.rs
@@ -1048,7 +1048,11 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
         }
     }
 
-    fn linux_solarish_readdir64(&mut self, dirp_op: &OpTy<'tcx>) -> InterpResult<'tcx, Scalar> {
+    fn linux_solarish_readdir64(
+        &mut self,
+        dirent_type: &str,
+        dirp_op: &OpTy<'tcx>,
+    ) -> InterpResult<'tcx, Scalar> {
         let this = self.eval_context_mut();
 
         if !matches!(&*this.tcx.sess.target.os, "linux" | "solaris" | "illumos") {
@@ -1097,7 +1101,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
                 let name_bytes = name.as_encoded_bytes();
                 let name_len = u64::try_from(name_bytes.len()).unwrap();
 
-                let dirent_layout = this.libc_ty_layout("dirent");
+                let dirent_layout = this.libc_ty_layout(dirent_type);
                 let fields = &dirent_layout.fields;
                 let last_field = fields.count().strict_sub(1);
                 let d_name_offset = fields.offset(last_field).bytes();
diff --git a/src/shims/unix/linux/foreign_items.rs b/src/shims/unix/linux/foreign_items.rs
index 6697fa49e4..6d0a2143fe 100644
--- a/src/shims/unix/linux/foreign_items.rs
+++ b/src/shims/unix/linux/foreign_items.rs
@@ -37,7 +37,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
             "readdir64" => {
                 let [dirp] =
                     this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
-                let result = this.linux_solarish_readdir64(dirp)?;
+                let result = this.linux_solarish_readdir64("dirent64", dirp)?;
                 this.write_scalar(result, dest)?;
             }
             "sync_file_range" => {
diff --git a/src/shims/unix/solarish/foreign_items.rs b/src/shims/unix/solarish/foreign_items.rs
index cf0b432667..faf280ad88 100644
--- a/src/shims/unix/solarish/foreign_items.rs
+++ b/src/shims/unix/solarish/foreign_items.rs
@@ -79,7 +79,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
             "readdir" => {
                 let [dirp] =
                     this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
-                let result = this.linux_solarish_readdir64(dirp)?;
+                let result = this.linux_solarish_readdir64("dirent", dirp)?;
                 this.write_scalar(result, dest)?;
             }