diff --git a/lib/simplejit/src/backend.rs b/lib/simplejit/src/backend.rs
index 09a12dd7ad..3fc46cd993 100644
--- a/lib/simplejit/src/backend.rs
+++ b/lib/simplejit/src/backend.rs
@@ -406,7 +406,7 @@ impl<'simple_jit_backend> Backend for SimpleJITBackend {
     fn publish(&mut self) {
         // Now that we're done patching, prepare the memory for execution!
         self.readonly_memory.set_readonly();
-        self.code_memory.set_executable();
+        self.code_memory.set_readable_and_executable();
     }
 
     /// SimpleJIT emits code and data into memory as it processes them, so it
diff --git a/lib/simplejit/src/memory.rs b/lib/simplejit/src/memory.rs
index b856c19009..f5dcf42780 100644
--- a/lib/simplejit/src/memory.rs
+++ b/lib/simplejit/src/memory.rs
@@ -113,15 +113,15 @@ impl Memory {
         Ok(self.current.ptr)
     }
 
-    /// Set all memory allocated in this `Memory` up to now as executable.
-    pub fn set_executable(&mut self) {
+    /// Set all memory allocated in this `Memory` up to now as readable and executable.
+    pub fn set_readable_and_executable(&mut self) {
         self.finish_current();
 
         for &PtrLen { ptr, len } in &self.allocations[self.executable..] {
             if len != 0 {
                 unsafe {
-                    region::protect(ptr, len, region::Protection::Execute)
-                        .expect("unable to make memory executable");
+                    region::protect(ptr, len, region::Protection::ReadExecute)
+                        .expect("unable to make memory readable+executable");
                 }
             }
         }