diff --git a/Operation.cpp b/Operation.cpp
index b43de94..d0b6027 100644
--- a/Operation.cpp
+++ b/Operation.cpp
@@ -1552,7 +1552,7 @@ Operation::SetBlockedRotAxis( const string& sBlockedAxis) const
    for ( int i = 0 ; i < nRotAxes && ! bFound ; ++ i) {
       string sAxToken ;
       if ( m_pMchMgr->GetCurrMachine()->GetCurrAxisToken( i + nLinAxes, sAxToken)  &&
-           sKey == Trim( sAxToken)) {
+           sKey == Trim( sAxToken, " \t\r\n=")) {
          string sAxis ;
          m_pMchMgr->GetCurrMachine()->GetCurrAxisName( i + nLinAxes, sAxis) ;
          m_pMchMgr->SetRotAxisBlock( sAxis, dVal) ;
@@ -1630,7 +1630,7 @@ Operation::CalculateAxesValues( const string& sHint, bool bRotContOnNext, bool b
          for ( int i = 0 ; i < nRotAxes ; ++ i) {
             string sAxToken ;
             if ( m_pMchMgr->GetCurrMachine()->GetCurrAxisToken( nLinAxes + i, sAxToken)  &&
-                 szKey == Trim( sAxToken)) {
+                 szKey == Trim( sAxToken, " \t\r\n=")) {
                double dVal ;
                if ( FromString( szVal, dVal)) {
                   double dOffset = 0 ;