diff --git a/CHANGELOG.md b/CHANGELOG.md
index a83f24d73..24749dd90 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,5 @@
 # v4.0.2-beta
+- **OpenCL backend disabled by default.**.
 - [#1183](https://github.com/xmrig/xmrig/issues/1183) Fixed compatibility with systemd.
 - [#1185](https://github.com/xmrig/xmrig/pull/1185) Added JIT compiler for RandomX on ARMv8.
 - Added command line option `--no-cpu` to disable CPU backend.
diff --git a/src/backend/opencl/OclConfig.cpp b/src/backend/opencl/OclConfig.cpp
index cdb38ccb8..cec10b359 100644
--- a/src/backend/opencl/OclConfig.cpp
+++ b/src/backend/opencl/OclConfig.cpp
@@ -215,16 +215,18 @@ void xmrig::OclConfig::read(const rapidjson::Value &value)
 
         setPlatform(Json::getValue(value, kPlatform));
 
-        if (isEnabled()) {
-            m_threads.read(value);
+        m_threads.read(value);
 
-            generate();
-        }
+        generate();
     }
-    else if (value.IsBool() && value.IsFalse()) {
-        m_enabled = false;
+    else if (value.IsBool()) {
+        m_enabled = value.GetBool();
+
+        generate();
     }
     else {
+        m_shouldSave = true;
+
         generate();
     }
 }
@@ -232,6 +234,10 @@ void xmrig::OclConfig::read(const rapidjson::Value &value)
 
 void xmrig::OclConfig::generate()
 {
+    if (!isEnabled()) {
+        return;
+    }
+
     if (!OclLib::init(loader())) {
         return;
     }
diff --git a/src/backend/opencl/OclConfig.h b/src/backend/opencl/OclConfig.h
index 22d1378ea..72546342e 100644
--- a/src/backend/opencl/OclConfig.h
+++ b/src/backend/opencl/OclConfig.h
@@ -56,7 +56,7 @@ private:
     void setPlatform(const rapidjson::Value &platform);
 
     bool m_cache         = true;
-    bool m_enabled       = true;
+    bool m_enabled       = false;
     bool m_shouldSave    = false;
     String m_loader;
     String m_platformVendor;
diff --git a/src/config.json b/src/config.json
index 2f88ecabf..3023d22a1 100644
--- a/src/config.json
+++ b/src/config.json
@@ -29,7 +29,7 @@
         "cn-lite/0": false
     },
     "opencl": {
-        "enabled": true,
+        "enabled": false,
         "cache": true,
         "loader": null,
         "platform": "AMD",
diff --git a/src/core/config/Config_default.h b/src/core/config/Config_default.h
index 8011bf16e..b68166498 100644
--- a/src/core/config/Config_default.h
+++ b/src/core/config/Config_default.h
@@ -63,7 +63,7 @@ R"===(
         "cn-lite/0": false
     },
     "opencl": {
-        "enabled": true,
+        "enabled": false,
         "cache": true,
         "loader": null,
         "platform": "AMD",