diff --git a/lib/ClientSai.cpp b/lib/ClientSai.cpp
index 0586b1911e71..f83d733db1cc 100644
--- a/lib/ClientSai.cpp
+++ b/lib/ClientSai.cpp
@@ -648,7 +648,7 @@ sai_status_t ClientSai::waitForObjectTypeGetAvailabilityResponse(
 
         const std::string &availability_str = fvValue(values[0]);
 
-        *count = std::stol(availability_str);
+        *count = std::stoull(availability_str);
 
         SWSS_LOG_DEBUG("Received payload: count = %lu", *count);
     }
diff --git a/lib/RedisRemoteSaiInterface.cpp b/lib/RedisRemoteSaiInterface.cpp
index 4279f133eba4..5e44c36d55a8 100644
--- a/lib/RedisRemoteSaiInterface.cpp
+++ b/lib/RedisRemoteSaiInterface.cpp
@@ -894,7 +894,7 @@ sai_status_t RedisRemoteSaiInterface::waitForObjectTypeGetAvailabilityResponse(
 
         const std::string &availability_str = fvValue(values[0]);
 
-        *count = std::stol(availability_str);
+        *count = std::stoull(availability_str);
 
         SWSS_LOG_DEBUG("Received payload: count = %lu", *count);
     }