diff --git a/doc/forceModel_particleCellVolume.txt b/doc/forceModel_particleCellVolume.txt
index 08162efb..e8065699 100644
--- a/doc/forceModel_particleCellVolume.txt
+++ b/doc/forceModel_particleCellVolume.txt
@@ -22,11 +22,14 @@ particleCellVolumeProps
     lowerThreshold scalar2;
     startTime      scalar3;
     verbose;
+    writeToFile    switch1;
 \} :pre
 
 {scalar1} = only cells with a field value (magnitude) lower than this upper threshold are considered :l
 {scalar2} = only cells with a field value (magnitude) greater than this lower threshold are considered :l
 {scalar3} = (optional, default 0) start time of volume calculation and output :l
+{verbose} = (optional, default false) keyword only (mostly used for debugging) :l
+{switch1} = (optional, default false) switch for file output :l
 :ule
 
 [Examples:]
diff --git a/doc/forceModel_volWeightedAverage.txt b/doc/forceModel_volWeightedAverage.txt
index a5773317..0570bc64 100644
--- a/doc/forceModel_volWeightedAverage.txt
+++ b/doc/forceModel_volWeightedAverage.txt
@@ -30,6 +30,7 @@ volWeightedAverageProps
     upperThreshold     scalar1;
     lowerThreshold     scalar2;
     verbose;
+    writeToFile        switch1;
 \} :pre
 
 {time} = (optional, default 0.) time to start the averaging :ulb,l
@@ -38,6 +39,7 @@ volWeightedAverageProps
 {scalar1} = only cells with a field value (magnitude) lower than this upper threshold are considered :l
 {scalar2} = only cells with a field value (magnitude) greater than this lower threshold are considered :l
 {verbose} = (optional, default false) keyword only (mostly used for debugging) :l
+{switch1} = (optional, default false) switch for file output :l
 :ule
 
 [Examples:]