diff --git a/matlab/src/cpp/arrow/matlab/array/proxy/numeric_array.h b/matlab/src/cpp/arrow/matlab/array/proxy/numeric_array.h
index 232df82b77bda..5c39e69de6d76 100644
--- a/matlab/src/cpp/arrow/matlab/array/proxy/numeric_array.h
+++ b/matlab/src/cpp/arrow/matlab/array/proxy/numeric_array.h
@@ -15,8 +15,6 @@
 // specific language governing permissions and limitations
 // under the License.
 
-#pragma once
-
 #include "arrow/array.h"
 #include "arrow/array/data.h"
 #include "arrow/array/util.h"
@@ -41,7 +39,7 @@
 namespace arrow::matlab::array::proxy {
 
 template<typename ArrowType>
-class ARROW_MATLAB_EXPORT NumericArray : public arrow::matlab::array::proxy::Array {
+class NumericArray : public arrow::matlab::array::proxy::Array {
     public:
 
         NumericArray(const std::shared_ptr<arrow::NumericArray<ArrowType>> numeric_array)
@@ -91,6 +89,6 @@ class ARROW_MATLAB_EXPORT NumericArray : public arrow::matlab::array::proxy::Arr
 
      // Specialization of NumericArray::Make for arrow::TimestampType.
     template <>
-    libmexclass::proxy::MakeResult NumericArray<arrow::TimestampType>::make(const libmexclass::proxy::FunctionArguments& constructor_arguments);
+    ARROW_MATLAB_EXPORT libmexclass::proxy::MakeResult NumericArray<arrow::TimestampType>::make(const libmexclass::proxy::FunctionArguments& constructor_arguments);
 
 }