diff --git a/sys/kerncore/src/lib.rs b/sys/kerncore/src/lib.rs
index c5079d18b..cb526b161 100644
--- a/sys/kerncore/src/lib.rs
+++ b/sys/kerncore/src/lib.rs
@@ -274,6 +274,11 @@ mod tests {
                 size: 0x0001_0000,
                 label: "good".to_string(),
             },
+            TestRegion {
+                base: 0x123A_5678,
+                size: 0x0001_0000,
+                label: "good".to_string(),
+            },
         ]
     }
     const GOOD_REGION_0_IDX: usize = 0;
@@ -418,37 +423,4 @@ mod tests {
              ranges but passes through bad one, but can",
         );
     }
-
-    #[test]
-    fn cannot_access_slice_spanning_over_uncontained_memory() {
-        // Using a custom region table to not cause
-        // cannot_access_uncontained_memory to spuriously fail.
-        let region_table = vec![
-            TestRegion {
-                base: 0x1238_5678,
-                size: 0x0001_0000,
-                label: "good".to_string(),
-            },
-            TestRegion {
-                // 64 kiB separated from previous region
-                base: 0x123A_5678,
-                size: 0x0001_0000,
-                label: "good".to_string(),
-            },
-        ];
-
-        let base = region_table[GOOD_REGION_0_IDX].base + 10;
-        let end = region_table[GOOD_REGION_1_IDX].end_addr() - 10;
-        let slice = TestSlice {
-            base,
-            size: end - base,
-        };
-
-        assert!(
-            // Load-bearing tiny punctuation character:
-            !can_access(slice, &region_table, accept_only_good_regions,),
-            "should NOT be able to access slice that starts and ends in \
-             good ranges but passes through uncontained memory, but can",
-        );
-    }
 }