diff --git a/src/db/db/gsiDeclDbTrans.cc b/src/db/db/gsiDeclDbTrans.cc
index cc00b33f6..ed6296625 100644
--- a/src/db/db/gsiDeclDbTrans.cc
+++ b/src/db/db/gsiDeclDbTrans.cc
@@ -742,7 +742,7 @@ struct cplx_trans_defs
       "\n"
       "@return The inverted transformation\n"
     ) +
-    method ("ctrans", &C::ctrans, arg ("d"),
+    method ("ctrans|*", &C::ctrans, arg ("d"),
       "@brief Transforms a distance\n"
       "\n"
       "The \"ctrans\" method transforms the given distance.\n"
diff --git a/testdata/ruby/dbTransTest.rb b/testdata/ruby/dbTransTest.rb
index 7fca57d7a..df24c8716 100644
--- a/testdata/ruby/dbTransTest.rb
+++ b/testdata/ruby/dbTransTest.rb
@@ -80,6 +80,8 @@ class DBTrans_TestClass < TestBase
     assert_equal( RBA::Trans::new(RBA::Trans::R180, RBA::DVector::new(5,-7)).to_s, "r180 5,-7" )
     assert_equal( RBA::Trans::new(RBA::Trans::R180).to_s, "r180 0,0" )
 
+    assert_equal( e.trans( 2.0 ).to_s, "2" )
+    assert_equal( (e * 2.0).to_s, "2" )
     assert_equal( e.trans( RBA::Edge::new(0, 1, 2, 3) ).to_s, "(-3,-2;-1,0)" )
     assert_equal( ( e * RBA::Edge::new(0, 1, 2, 3) ).to_s, "(-3,-2;-1,0)" )
     assert_equal( e.trans( RBA::Box::new(0, 1, 2, 3) ).to_s, "(-3,-2;-1,0)" )
@@ -140,7 +142,9 @@ class DBTrans_TestClass < TestBase
 
     assert_equal( mb.trans( RBA::DPoint::new( 1, 0 )).to_s, "17,3" )
     assert_equal( mb.ctrans(2).to_s, "4.0" )
+    assert_equal( (mb * 2).to_s, "4.0" )
     assert_equal( i.ctrans(2).to_s, "1.0" )
+    assert_equal( (i * 2).to_s, "1.0" )
 
   end
 
@@ -199,6 +203,7 @@ class DBTrans_TestClass < TestBase
     assert_equal( (c.angle - 45).abs < 1e-10, true )
 
     assert_equal( c.ctrans( 5 ).to_s, "3.75" )
+    assert_equal( (c * 5).to_s, "3.75" )
     assert_equal( c.trans( RBA::DPoint::new( 12, 16 ) ).to_s, "17.3492424049,-14.6213203436" )
 
     assert_equal( RBA::DCplxTrans::new.to_s, "r0 *1 0,0" )
@@ -306,7 +311,9 @@ class DBTrans_TestClass < TestBase
 
     assert_equal( mb.trans( RBA::Point::new( 1, 0 )).to_s, "17,3" )
     assert_equal( mb.ctrans(2).to_s, "4.0" )
+    assert_equal( (mb * 2).to_s, "4.0" )
     assert_equal( i.ctrans(2).to_s, "1.0" )
+    assert_equal( (i * 2).to_s, "1.0" )
 
   end
 
@@ -353,6 +360,7 @@ class DBTrans_TestClass < TestBase
     assert_equal( (c.angle - 45).abs < 1e-10, true )
 
     assert_equal( c.ctrans( 5 ).to_s, "3.75" )
+    assert_equal( (c * 5).to_s, "3.75" )
     assert_equal( c.trans( RBA::Point::new( 12, 16 ) ).to_s, "17.3492424049,-14.6213203436" )
 
     assert_equal( RBA::CplxTrans::new.to_s, "r0 *1 0,0" )