diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index a0de847880..74a47f54fa 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -6,7 +6,7 @@
 
 We use [clang-format](https://clang.llvm.org/docs/ClangFormat.html) code formatter.
 
-Install: `pip install clang`
+Install: `conda install clang-tools`
 
 - Revision: `10.0.1`
 - See the default configuration used by dpCtl in `.clang-format`.
diff --git a/dpctl-capi/helper/include/dpctl_dynamic_lib_helper.h b/dpctl-capi/helper/include/dpctl_dynamic_lib_helper.h
index 59e33b13d0..32c84e22b6 100644
--- a/dpctl-capi/helper/include/dpctl_dynamic_lib_helper.h
+++ b/dpctl-capi/helper/include/dpctl_dynamic_lib_helper.h
@@ -46,6 +46,7 @@ namespace dpctl
 class DynamicLibHelper final
 {
 public:
+    DynamicLibHelper &operator=(const DynamicLibHelper &) = delete;
     DynamicLibHelper() = delete;
     DynamicLibHelper(const DynamicLibHelper &) = delete;
     DynamicLibHelper(const char *libName, int flag)
diff --git a/dpctl-capi/source/dpctl_sycl_program_interface.cpp b/dpctl-capi/source/dpctl_sycl_program_interface.cpp
index 52faf48a04..52ad97db46 100644
--- a/dpctl-capi/source/dpctl_sycl_program_interface.cpp
+++ b/dpctl-capi/source/dpctl_sycl_program_interface.cpp
@@ -269,9 +269,11 @@ DPCTLProgram_CreateFromOCLSource(__dpctl_keep const DPCTLSyclContextRef Ctx,
         break;
     case backend::level_zero:
         std::cerr << "CreateFromSource is not supported in Level Zero.\n";
+        delete SyclProgram;
         return nullptr;
     default:
         std::cerr << "CreateFromSource is not supported in unknown backend.\n";
+        delete SyclProgram;
         return nullptr;
     }
 }