diff --git a/projects/rocr-runtime/samples/common/hsa_base_util.cpp b/projects/rocr-runtime/samples/common/hsa_base_util.cpp
index 811b58d500..4f3faa4338 100644
--- a/projects/rocr-runtime/samples/common/hsa_base_util.cpp
+++ b/projects/rocr-runtime/samples/common/hsa_base_util.cpp
@@ -98,7 +98,7 @@ bool HSA_UTIL::HsaInit()
 
 	// Get symbol handle.
 	hsa_executable_symbol_t kernelSymbol;
-	err = hsa_executable_get_symbol(hsaExecutable, "",  hsa_kernel_name, device, 0, &kernelSymbol);
+	err = hsa_executable_get_symbol(hsaExecutable, NULL,  hsa_kernel_name, device, 0, &kernelSymbol);
 	check("get symbol handle", err);
 
 	// Get code handle.
diff --git a/projects/rocr-runtime/samples/common/hsa_rsrc_factory.cpp b/projects/rocr-runtime/samples/common/hsa_rsrc_factory.cpp
index efd4d39b3d..34f47c4f78 100755
--- a/projects/rocr-runtime/samples/common/hsa_rsrc_factory.cpp
+++ b/projects/rocr-runtime/samples/common/hsa_rsrc_factory.cpp
@@ -278,7 +278,7 @@ bool HsaRsrcFactory::LoadAndFinalize(AgentInfo *agent_info,
 
   // Get symbol handle.
   hsa_executable_symbol_t kernelSymbol;
-  status = hsa_executable_get_symbol(hsaExecutable, "",
+  status = hsa_executable_get_symbol(hsaExecutable, NULL,
                              kernel_name, agent_info->dev_id, 0, &kernelSymbol);
   
   // Update output parameter