diff --git a/matlab/src/cpp/arrow/matlab/c/proxy/array.cc b/matlab/src/cpp/arrow/matlab/c/proxy/array.cc
index 9cfa7d1e2be9b..a92ea15243270 100644
--- a/matlab/src/cpp/arrow/matlab/c/proxy/array.cc
+++ b/matlab/src/cpp/arrow/matlab/c/proxy/array.cc
@@ -23,7 +23,7 @@
 
 namespace arrow::matlab::c::proxy {
 
-Array::Array() : arrowArray{(ArrowArray*)malloc(sizeof(struct ArrowArray*))} {
+Array::Array() : arrowArray{(struct ArrowArray*)malloc(sizeof(struct ArrowArray*))} {
   REGISTER_METHOD(Array, getAddress);
 }