diff --git a/src/common/net/Job.cpp b/src/common/net/Job.cpp
index 851507ad..cb6be4e6 100644
--- a/src/common/net/Job.cpp
+++ b/src/common/net/Job.cpp
@@ -127,24 +127,6 @@ bool xmrig::Job::setBlob(const char *blob)
         m_algorithm.setVariant(variant());
     }
 
-    if (!m_algorithm.isForced()) {
-        if (m_algorithm.variant() == VARIANT_XTL && m_blob[0] >= 9) {
-            m_algorithm.setVariant(VARIANT_HALF);
-        }
-        else if (m_algorithm.variant() == VARIANT_MSR && m_blob[0] >= 8) {
-            m_algorithm.setVariant(VARIANT_HALF);
-        }
-        else if (m_algorithm.variant() == VARIANT_WOW && m_blob[0] < 11) {
-            m_algorithm.setVariant(VARIANT_2);
-        }
-        else if (m_algorithm.variant() == VARIANT_RWZ && m_blob[0] < 12) {
-            m_algorithm.setVariant(VARIANT_2);
-        }
-        else if (m_algorithm.variant() == VARIANT_ZLS && m_blob[0] < 8) {
-            m_algorithm.setVariant(VARIANT_2);
-        }
-    }
-
 #   ifdef XMRIG_PROXY_PROJECT
     memset(m_rawBlob, 0, sizeof(m_rawBlob));
     memcpy(m_rawBlob, blob, m_size * 2);