diff --git a/r/src/array_to_vector.cpp b/r/src/array_to_vector.cpp
index 7cf861a5448..f834a88f1b5 100644
--- a/r/src/array_to_vector.cpp
+++ b/r/src/array_to_vector.cpp
@@ -886,7 +886,7 @@ class Converter_Time : public Converter {
   }
 };
 
-template <typename value_type, typename unit_type = TimeType>
+template <typename value_type, typename unit_type = DurationType>
 class Converter_Duration : public Converter {
  public:
   explicit Converter_Duration(const std::shared_ptr<ChunkedArray>& chunked_array)
diff --git a/r/src/arrowExports.cpp b/r/src/arrowExports.cpp
index cb0dc5097d4..ab2d55937f5 100644
--- a/r/src/arrowExports.cpp
+++ b/r/src/arrowExports.cpp
@@ -3020,10 +3020,10 @@ extern "C" SEXP _arrow_TimeType__unit(SEXP type_sexp){
 
 // datatype.cpp
 #if defined(ARROW_R_WITH_ARROW)
-arrow::TimeUnit::type DurationType__unit(const std::shared_ptr<arrow::TimeType>& type);
+arrow::TimeUnit::type DurationType__unit(const std::shared_ptr<arrow::DurationType>& type);
 extern "C" SEXP _arrow_DurationType__unit(SEXP type_sexp){
 BEGIN_CPP11
-	arrow::r::Input<const std::shared_ptr<arrow::TimeType>&>::type type(type_sexp);
+	arrow::r::Input<const std::shared_ptr<arrow::DurationType>&>::type type(type_sexp);
 	return cpp11::as_sexp(DurationType__unit(type));
 END_CPP11
 }
diff --git a/r/src/datatype.cpp b/r/src/datatype.cpp
index 17e4eafe824..62933cccfcc 100644
--- a/r/src/datatype.cpp
+++ b/r/src/datatype.cpp
@@ -317,7 +317,8 @@ arrow::TimeUnit::type TimeType__unit(const std::shared_ptr<arrow::TimeType>& typ
 }
 
 // [[arrow::export]]
-arrow::TimeUnit::type DurationType__unit(const std::shared_ptr<arrow::TimeType>& type) {
+arrow::TimeUnit::type DurationType__unit(
+    const std::shared_ptr<arrow::DurationType>& type) {
   return type->unit();
 }