diff --git a/packages/core/src/render3/PERF_NOTES.md b/packages/core/src/render3/PERF_NOTES.md
index 909d278a49..ff8e7d0790 100644
--- a/packages/core/src/render3/PERF_NOTES.md
+++ b/packages/core/src/render3/PERF_NOTES.md
@@ -71,7 +71,7 @@ Avoid recursive functions when possible because they cannot be inlined.
 ## Function Inlining
 
 VMs gain a lot of speed by inlining functions which are small (such as getters).
-This is because the cost of the value retrieval (getter) is ofter way less than the cost of making a function call.
+This is because the cost of the value retrieval (getter) is often way less than the cost of making a function call.
 VMs use the heuristic of size to determine wether a function should be inline. 
 Thinking is that large function probably will not benefit inlining because the overhead of function call is not significant to the overall function execution.