diff --git a/src/crypto/rx/Rx.cpp b/src/crypto/rx/Rx.cpp
index 6df708be1..8e757ddf2 100644
--- a/src/crypto/rx/Rx.cpp
+++ b/src/crypto/rx/Rx.cpp
@@ -250,9 +250,9 @@ xmrig::RxDataset *xmrig::Rx::dataset(const Job &job, uint32_t nodeId)
 }
 
 
-std::pair<size_t, size_t> xmrig::Rx::hugePages()
+std::pair<unsigned, unsigned> xmrig::Rx::hugePages()
 {
-    std::pair<size_t, size_t> pages(0, 0);
+    std::pair<unsigned, unsigned> pages(0, 0);
     std::lock_guard<std::mutex> lock(d_ptr->mutex);
 
     for (auto const &item : d_ptr->datasets) {
diff --git a/src/crypto/rx/Rx.h b/src/crypto/rx/Rx.h
index 7cb94b4eb..1a383055a 100644
--- a/src/crypto/rx/Rx.h
+++ b/src/crypto/rx/Rx.h
@@ -46,7 +46,7 @@ class Rx
 public:
     static bool isReady(const Job &job);
     static RxDataset *dataset(const Job &job, uint32_t nodeId);
-    static std::pair<size_t, size_t> hugePages();
+    static std::pair<unsigned, unsigned> hugePages();
     static void destroy();
     static void init();
     static void init(const Job &job, int initThreads, bool hugePages, bool numa);