diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6bf79e4b11f..321ef02b651 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -33,7 +33,7 @@
 
 ### 💡 Enhancements 💡
 
-- Added `MarshalSizer` interface to `ptrace`, `plog`, and `pmetric` packages. `NewProtoMarshaler` now returns a `MarshalSizer` (#5929)
+- Added `MarshalerSizer` interface to `ptrace`, `plog`, and `pmetric` packages. `NewProtoMarshaler` now returns a `MarshalerSizer` (#5929)
 - Add support to unmarshalls bytes into pmetric.Metrics with `jsoniter` in jsonUnmarshaler(#5433)
 - Add httpprovider to allow loading config files stored in HTTP (#5810)
 - Added `service.telemetry.traces.propagators` configuration to set propagators for collector's internal spans. (#5572)
diff --git a/pdata/plog/encoding.go b/pdata/plog/encoding.go
index a03660dd939..69a71c260c4 100644
--- a/pdata/plog/encoding.go
+++ b/pdata/plog/encoding.go
@@ -14,8 +14,8 @@
 
 package plog // import "go.opentelemetry.io/collector/pdata/plog"
 
-// MarshalSizer is the interface that groups the basic Marshal and Size methods
-type MarshalSizer interface {
+// MarshalerSizer is the interface that groups the basic Marshal and Size methods
+type MarshalerSizer interface {
 	Marshaler
 	Sizer
 }
diff --git a/pdata/plog/pb.go b/pdata/plog/pb.go
index babbbee231d..a12c967edcc 100644
--- a/pdata/plog/pb.go
+++ b/pdata/plog/pb.go
@@ -19,9 +19,9 @@ import (
 	otlplogs "go.opentelemetry.io/collector/pdata/internal/data/protogen/logs/v1"
 )
 
-// NewProtoMarshaler returns a MarshalSizer.
+// NewProtoMarshaler returns a MarshalerSizer.
 // Marshals to OTLP binary protobuf bytes and calculates the size of the marshaled Logs.
-func NewProtoMarshaler() MarshalSizer {
+func NewProtoMarshaler() MarshalerSizer {
 	return newPbMarshaler()
 }
 
diff --git a/pdata/pmetric/encoding.go b/pdata/pmetric/encoding.go
index 5b9e0327355..51c5acec3a0 100644
--- a/pdata/pmetric/encoding.go
+++ b/pdata/pmetric/encoding.go
@@ -14,8 +14,8 @@
 
 package pmetric // import "go.opentelemetry.io/collector/pdata/pmetric"
 
-// MarshalSizer is the interface that groups the basic Marshal and Size methods
-type MarshalSizer interface {
+// MarshalerSizer is the interface that groups the basic Marshal and Size methods
+type MarshalerSizer interface {
 	Marshaler
 	Sizer
 }
diff --git a/pdata/pmetric/pb.go b/pdata/pmetric/pb.go
index c11f051ad84..db05b35c253 100644
--- a/pdata/pmetric/pb.go
+++ b/pdata/pmetric/pb.go
@@ -19,9 +19,9 @@ import (
 	otlpmetrics "go.opentelemetry.io/collector/pdata/internal/data/protogen/metrics/v1"
 )
 
-// NewProtoMarshaler returns a MarshalSizer.
+// NewProtoMarshaler returns a MarshalerSizer.
 // Marshals to OTLP binary protobuf bytes and calculates the size of the marshaled Metrics.
-func NewProtoMarshaler() MarshalSizer {
+func NewProtoMarshaler() MarshalerSizer {
 	return newPbMarshaler()
 }
 
diff --git a/pdata/ptrace/encoding.go b/pdata/ptrace/encoding.go
index 78c2fba7cb8..25fa14e0cdf 100644
--- a/pdata/ptrace/encoding.go
+++ b/pdata/ptrace/encoding.go
@@ -14,8 +14,8 @@
 
 package ptrace // import "go.opentelemetry.io/collector/pdata/ptrace"
 
-// MarshalSizer is the interface that groups the basic Marshal and Size methods
-type MarshalSizer interface {
+// MarshalerSizer is the interface that groups the basic Marshal and Size methods
+type MarshalerSizer interface {
 	Marshaler
 	Sizer
 }
diff --git a/pdata/ptrace/pb.go b/pdata/ptrace/pb.go
index a28e4c29a9e..e164145904a 100644
--- a/pdata/ptrace/pb.go
+++ b/pdata/ptrace/pb.go
@@ -19,9 +19,9 @@ import (
 	otlptrace "go.opentelemetry.io/collector/pdata/internal/data/protogen/trace/v1"
 )
 
-// NewProtoMarshaler returns a MarshalSizer.
+// NewProtoMarshaler returns a MarshalerSizer.
 // Marshals to OTLP binary protobuf bytes and calculates the size of the marshaled Traces.
-func NewProtoMarshaler() MarshalSizer {
+func NewProtoMarshaler() MarshalerSizer {
 	return newPbMarshaler()
 }