diff --git a/src/data_race.rs b/src/data_race.rs
index d9bfbc1bdb5a..78b9b09f1615 100644
--- a/src/data_race.rs
+++ b/src/data_race.rs
@@ -103,7 +103,7 @@ pub enum AtomicFenceOp {
 pub struct ThreadClockSet {
     /// The increasing clock representing timestamps
     /// that happen-before this thread.
-    pub clock: VClock,
+    pub(crate) clock: VClock,
 
     /// The set of timestamps that will happen-before this
     /// thread once it performs an acquire fence.
@@ -113,11 +113,17 @@ pub struct ThreadClockSet {
     /// have been released by this thread by a fence.
     fence_release: VClock,
 
-    pub fence_seqcst: VClock,
+    /// Timestamps of the last SC fence performed by each
+    /// thread, updated when this thread performs an SC fence
+    pub(crate) fence_seqcst: VClock,
 
-    pub write_seqcst: VClock,
+    /// Timestamps of the last SC write performed by each
+    /// thread, updated when this thread performs an SC fence
+    pub(crate) write_seqcst: VClock,
 
-    pub read_seqcst: VClock,
+    /// Timestamps of the last SC fence performed by each
+    /// thread, updated when this thread performs an SC read
+    pub(crate) read_seqcst: VClock,
 }
 
 impl ThreadClockSet {
diff --git a/src/weak_memory.rs b/src/weak_memory.rs
index b9ab12923117..46838c5c8a1f 100644
--- a/src/weak_memory.rs
+++ b/src/weak_memory.rs
@@ -88,7 +88,7 @@ pub struct StoreBuffer {
 }
 
 #[derive(Debug, Clone, PartialEq, Eq)]
-pub struct StoreElement {
+struct StoreElement {
     /// The identifier of the vector index, corresponding to a thread
     /// that performed the store.
     store_index: VectorIdx,