diff --git a/RTCP/Cobalt/CoInterface/src/Parset.cc b/RTCP/Cobalt/CoInterface/src/Parset.cc
index 212cd942ace21c42e9df6a1bab1a9078c5aae903..280f411945aa3544a2b0a9d36fab0c267473b5fc 100644
--- a/RTCP/Cobalt/CoInterface/src/Parset.cc
+++ b/RTCP/Cobalt/CoInterface/src/Parset.cc
@@ -709,7 +709,7 @@ namespace LOFAR
           size_t nrTABs    = getUint32(str(format("Observation.Beam[%u].nrTiedArrayBeams") % i), 0);
           size_t nrTABSParset = nrTABs;
           size_t nrRings   = getUint32(str(format("Observation.Beam[%u].nrTabRings") % i), 0);
-          double ringWidth = getDouble(str(format("Observation.Beam[%u].ringWidth") % i), 0.0);
+          double ringWidth = getDouble(str(format("Observation.Beam[%u].tabRingSize") % i), 0.0);
 
           // Create a ptr to RingCoordinates object
           // If there are tab rings the object will be actuall constructed
@@ -797,7 +797,7 @@ namespace LOFAR
                 // but not used anyway. Unclear if setting to 0.0 is better/worse.
                 const string prefix = str(format("Cobalt.Observation.Beam[%u]") % i);
                 tab.dispersionMeasure = getDouble(prefix + ".tabRingDispersionMeasure", 0.0);
-                tab.coherent = getBool(prefix + ".tabRingCoherent", true); // in practice, always coherent
+                tab.coherent = true; // rings cannot be incoherent, since we use non-(0,0) pointings
               }
             }
 
diff --git a/RTCP/Cobalt/CoInterface/test/tParset.cc b/RTCP/Cobalt/CoInterface/test/tParset.cc
index cabd12fc29399afc88de30033f2127a86ed6ce40..42e7b80d4f06d9c235d1f9a08290307b6cbefd96 100644
--- a/RTCP/Cobalt/CoInterface/test/tParset.cc
+++ b/RTCP/Cobalt/CoInterface/test/tParset.cc
@@ -1077,7 +1077,7 @@ TEST(testRing) {
   ps.replace(key, value);
 
   // ringwidth == 1
-  key = prefix + ".ringWidth";
+  key = prefix + ".tabRingSize";
   value = "2";
   ps.replace(key, value);
 
diff --git a/SubSystems/Online_Cobalt/test/default.parset b/SubSystems/Online_Cobalt/test/default.parset
index 04a4ff29ff03493f85b6521dfb3476089d851dc3..652fc9ac1454fbde96c58e9bf926feff6ac3f4ed 100644
--- a/SubSystems/Online_Cobalt/test/default.parset
+++ b/SubSystems/Online_Cobalt/test/default.parset
@@ -165,7 +165,7 @@ Observation.Beam[0].nrTiedArrayBeams=1
 # Number of rings to create
 Observation.Beam[0].nrTabRings=0
 # Distance between rings
-Observation.Beam[0].ringWidth=0
+Observation.Beam[0].tabRingSize=0
 
 # TAB pointing (absolute). The relative pointings still end up in the metadata,
 # so the directionType must therefor match the directionType of the SAP.