diff --git a/backend/common/src/rolling_total.rs b/backend/common/src/rolling_total.rs
index b9caf9f5a..3f5c81f14 100644
--- a/backend/common/src/rolling_total.rs
+++ b/backend/common/src/rolling_total.rs
@@ -50,7 +50,7 @@ impl RollingTotalBuilder {
 
     /// Set the size of the window of time that we'll look back on
     /// to sum up values over to give us the current total. The size
-    /// is set as a multiple of the granularity; a granulatiry of 1s
+    /// is set as a multiple of the granularity; a granularity of 1s
     /// and a size of 10 means the window size will be 10 seconds.
     pub fn window_size_multiple(mut self, val: usize) -> Self {
         self.window_size_multiple = val;
diff --git a/backend/telemetry_core/src/state/counter.rs b/backend/telemetry_core/src/state/counter.rs
index cc1f474c4..49ea45752 100644
--- a/backend/telemetry_core/src/state/counter.rs
+++ b/backend/telemetry_core/src/state/counter.rs
@@ -39,7 +39,7 @@ impl<K> Counter<K>
 where
     K: Sized + std::hash::Hash + Eq,
 {
-    /// Either adds or removes a single occurence of a given `key`.
+    /// Either adds or removes a single occurrence of a given `key`.
     pub fn modify<'a, Q>(&mut self, key: Option<&'a Q>, op: CounterValue)
     where
         Q: ?Sized + std::hash::Hash + Eq,