diff --git a/src/mac/streams/module_list.rs b/src/mac/streams/module_list.rs
index dfc8fe6e..4cb958da 100644
--- a/src/mac/streams/module_list.rs
+++ b/src/mac/streams/module_list.rs
@@ -344,14 +344,6 @@ mod test {
     /// both the local and intra-process scenarios
     #[test]
     fn images_match() {
-        if std::env::var_os("CI").is_some() && cfg!(target_arch = "aarch64") {
-            // https://github.com/rust-minidump/minidump-writer/issues/101
-            println!(
-                "this fails on github actions but works on a local aarch64-apple-darwin machine..."
-            );
-            return;
-        }
-
         let mdw = MinidumpWriter::new(None, None);
         let td = TaskDumper::new(mdw.task);
 
diff --git a/src/mac/task_dumper.rs b/src/mac/task_dumper.rs
index e479ee45..0798801a 100644
--- a/src/mac/task_dumper.rs
+++ b/src/mac/task_dumper.rs
@@ -104,6 +104,12 @@ pub struct VMRegionInfo {
     pub range: std::ops::Range<u64>,
 }
 
+impl VMRegionInfo {
+    fn is_readable(&self) -> bool {
+        self.info.protection & mach2::vm_prot::VM_PROT_READ != 0
+    }
+}
+
 /// Similarly to PtraceDumper for Linux, this provides access to information
 /// for a task (MacOS process)
 pub struct TaskDumper {
@@ -205,7 +211,7 @@ impl TaskDumper {
             if size_to_end < 4 * 1024 {
                 let maybe_adjacent = self.get_vm_region(region.range.end)?;
 
-                if maybe_adjacent.range.start == region.range.end {
+                if maybe_adjacent.range.start == region.range.end && maybe_adjacent.is_readable() {
                     size_to_end += maybe_adjacent.range.end - maybe_adjacent.range.start;
                 }
             }