diff --git a/opentelemetry/proto/profiles/v1experimental/pprofextended.proto b/opentelemetry/proto/profiles/v1experimental/pprofextended.proto
index 5ebe1fd93..b5b5b88fc 100644
--- a/opentelemetry/proto/profiles/v1experimental/pprofextended.proto
+++ b/opentelemetry/proto/profiles/v1experimental/pprofextended.proto
@@ -205,7 +205,7 @@ enum AggregationTemporality {
   11. A request is received, the system measures 1 request.
   12. The 1 second collection cycle ends. A metric is exported for the
       number of requests received over the interval of time t_1 to
-      t_0+1 with a value of 1.
+      t_1+1 with a value of 1.
 
   Note: Even though, when reporting changes since last report time, using
   CUMULATIVE is valid, it is not recommended. */
diff --git a/opentelemetry/proto/profiles/v1experimental/profiles.proto b/opentelemetry/proto/profiles/v1experimental/profiles.proto
index bbc2b2931..84b0108f8 100644
--- a/opentelemetry/proto/profiles/v1experimental/profiles.proto
+++ b/opentelemetry/proto/profiles/v1experimental/profiles.proto
@@ -55,7 +55,7 @@ option go_package = "go.opentelemetry.io/proto/otlp/profiles/v1experimental";
 // ┌──────────────────┐
 // │      Profile     │
 // └──────────────────┘
-//   │                                1-n
+//   │                                n-1
 //   │ 1-n         ┌───────────────────────────────────────┐
 //   ▼             │                                       ▽
 // ┌──────────────────┐   1-n   ┌──────────────┐      ┌──────────┐