diff --git a/src/backend/opencl/wrappers/OclDevice.cpp b/src/backend/opencl/wrappers/OclDevice.cpp
index b10713d47..67f8166b5 100644
--- a/src/backend/opencl/wrappers/OclDevice.cpp
+++ b/src/backend/opencl/wrappers/OclDevice.cpp
@@ -59,7 +59,7 @@ extern bool ocl_vega_cn_generator(const OclDevice &device, const Algorithm &algo
 extern bool ocl_generic_cn_generator(const OclDevice &device, const Algorithm &algorithm, OclThreads &threads);
 
 
-ocl_gen_config_fun generators[] = {
+static ocl_gen_config_fun generators[] = {
 #   ifdef XMRIG_ALGO_RANDOMX
     ocl_generic_rx_generator,
 #   endif
@@ -215,6 +215,6 @@ void xmrig::OclDevice::toJSON(rapidjson::Value &out, rapidjson::Document &doc) c
     out.AddMember("name",        name().toJSON(doc), allocator);
     out.AddMember("bus_id",      topology().toString().toJSON(doc), allocator);
     out.AddMember("cu",          computeUnits(), allocator);
-    out.AddMember("global_mem",  globalMemSize(), allocator);
+    out.AddMember("global_mem",  static_cast<uint64_t>(globalMemSize()), allocator);
 }
 #endif
diff --git a/src/backend/opencl/wrappers/OclPlatform.cpp b/src/backend/opencl/wrappers/OclPlatform.cpp
index 987ec5e30..601ee6fae 100644
--- a/src/backend/opencl/wrappers/OclPlatform.cpp
+++ b/src/backend/opencl/wrappers/OclPlatform.cpp
@@ -73,7 +73,7 @@ rapidjson::Value xmrig::OclPlatform::toJSON(rapidjson::Document &doc) const
     }
 
     Value out(kObjectType);
-    out.AddMember("index",      index(), allocator);
+    out.AddMember("index",      static_cast<uint64_t>(index()), allocator);
     out.AddMember("profile",    profile().toJSON(doc), allocator);
     out.AddMember("version",    version().toJSON(doc), allocator);
     out.AddMember("name",       name().toJSON(doc), allocator);