diff --git a/modules/core/src/system.cpp b/modules/core/src/system.cpp
index 8008746f5d..23617c84df 100644
--- a/modules/core/src/system.cpp
+++ b/modules/core/src/system.cpp
@@ -329,7 +329,7 @@ struct HWFeatures
             Elf32_auxv_t auxv;
             const size_t size_auxv_t = sizeof(Elf32_auxv_t);
 
-            while (read(cpufile, &auxv, sizeof(Elf32_auxv_t)) == size_auxv_t)
+            while ((size_t)read(cpufile, &auxv, sizeof(Elf32_auxv_t)) == size_auxv_t)
             {
                 if (auxv.a_type == AT_HWCAP)
                 {