diff --git a/src/lagrangian/Allwmake b/src/lagrangian/Allwmake
index e04d7480fbfa02bfd0c352b63c2a138a6ea337ee..93d014f5cbef72998bcc21df6f6210d6a2d0edf4 100755
--- a/src/lagrangian/Allwmake
+++ b/src/lagrangian/Allwmake
@@ -3,6 +3,7 @@ cd ${0%/*} || exit 1    # run from this directory
 [ $# -ge 1 ] && makeOption=$1 || makeOption=libso
 set -x
 
+wmake $makeOption pdfs
 wmake $makeOption basic
 wmake $makeOption solidParticle
 wmake $makeOption intermediate
diff --git a/src/thermophysicalModels/pdfs/Make/files b/src/lagrangian/pdfs/Make/files
similarity index 100%
rename from src/thermophysicalModels/pdfs/Make/files
rename to src/lagrangian/pdfs/Make/files
diff --git a/src/thermophysicalModels/pdfs/Make/options b/src/lagrangian/pdfs/Make/options
similarity index 100%
rename from src/thermophysicalModels/pdfs/Make/options
rename to src/lagrangian/pdfs/Make/options
diff --git a/src/thermophysicalModels/pdfs/RosinRammler/RosinRammler.C b/src/lagrangian/pdfs/RosinRammler/RosinRammler.C
similarity index 100%
rename from src/thermophysicalModels/pdfs/RosinRammler/RosinRammler.C
rename to src/lagrangian/pdfs/RosinRammler/RosinRammler.C
diff --git a/src/thermophysicalModels/pdfs/RosinRammler/RosinRammler.H b/src/lagrangian/pdfs/RosinRammler/RosinRammler.H
similarity index 100%
rename from src/thermophysicalModels/pdfs/RosinRammler/RosinRammler.H
rename to src/lagrangian/pdfs/RosinRammler/RosinRammler.H
diff --git a/src/thermophysicalModels/pdfs/exponential/exponential.C b/src/lagrangian/pdfs/exponential/exponential.C
similarity index 100%
rename from src/thermophysicalModels/pdfs/exponential/exponential.C
rename to src/lagrangian/pdfs/exponential/exponential.C
diff --git a/src/thermophysicalModels/pdfs/exponential/exponential.H b/src/lagrangian/pdfs/exponential/exponential.H
similarity index 100%
rename from src/thermophysicalModels/pdfs/exponential/exponential.H
rename to src/lagrangian/pdfs/exponential/exponential.H
diff --git a/src/thermophysicalModels/pdfs/fixedValue/fixedValue.C b/src/lagrangian/pdfs/fixedValue/fixedValue.C
similarity index 100%
rename from src/thermophysicalModels/pdfs/fixedValue/fixedValue.C
rename to src/lagrangian/pdfs/fixedValue/fixedValue.C
diff --git a/src/thermophysicalModels/pdfs/fixedValue/fixedValue.H b/src/lagrangian/pdfs/fixedValue/fixedValue.H
similarity index 100%
rename from src/thermophysicalModels/pdfs/fixedValue/fixedValue.H
rename to src/lagrangian/pdfs/fixedValue/fixedValue.H
diff --git a/src/thermophysicalModels/pdfs/general/general.C b/src/lagrangian/pdfs/general/general.C
similarity index 100%
rename from src/thermophysicalModels/pdfs/general/general.C
rename to src/lagrangian/pdfs/general/general.C
diff --git a/src/thermophysicalModels/pdfs/general/general.H b/src/lagrangian/pdfs/general/general.H
similarity index 100%
rename from src/thermophysicalModels/pdfs/general/general.H
rename to src/lagrangian/pdfs/general/general.H
diff --git a/src/thermophysicalModels/pdfs/multiNormal/multiNormal.C b/src/lagrangian/pdfs/multiNormal/multiNormal.C
similarity index 100%
rename from src/thermophysicalModels/pdfs/multiNormal/multiNormal.C
rename to src/lagrangian/pdfs/multiNormal/multiNormal.C
diff --git a/src/thermophysicalModels/pdfs/multiNormal/multiNormal.H b/src/lagrangian/pdfs/multiNormal/multiNormal.H
similarity index 100%
rename from src/thermophysicalModels/pdfs/multiNormal/multiNormal.H
rename to src/lagrangian/pdfs/multiNormal/multiNormal.H
diff --git a/src/thermophysicalModels/pdfs/normal/normal.C b/src/lagrangian/pdfs/normal/normal.C
similarity index 100%
rename from src/thermophysicalModels/pdfs/normal/normal.C
rename to src/lagrangian/pdfs/normal/normal.C
diff --git a/src/thermophysicalModels/pdfs/normal/normal.H b/src/lagrangian/pdfs/normal/normal.H
similarity index 100%
rename from src/thermophysicalModels/pdfs/normal/normal.H
rename to src/lagrangian/pdfs/normal/normal.H
diff --git a/src/thermophysicalModels/pdfs/pdf/pdf.C b/src/lagrangian/pdfs/pdf/pdf.C
similarity index 100%
rename from src/thermophysicalModels/pdfs/pdf/pdf.C
rename to src/lagrangian/pdfs/pdf/pdf.C
diff --git a/src/thermophysicalModels/pdfs/pdf/pdf.H b/src/lagrangian/pdfs/pdf/pdf.H
similarity index 100%
rename from src/thermophysicalModels/pdfs/pdf/pdf.H
rename to src/lagrangian/pdfs/pdf/pdf.H
diff --git a/src/thermophysicalModels/pdfs/pdf/pdfNew.C b/src/lagrangian/pdfs/pdf/pdfNew.C
similarity index 100%
rename from src/thermophysicalModels/pdfs/pdf/pdfNew.C
rename to src/lagrangian/pdfs/pdf/pdfNew.C
diff --git a/src/thermophysicalModels/pdfs/uniform/uniform.C b/src/lagrangian/pdfs/uniform/uniform.C
similarity index 100%
rename from src/thermophysicalModels/pdfs/uniform/uniform.C
rename to src/lagrangian/pdfs/uniform/uniform.C
diff --git a/src/thermophysicalModels/pdfs/uniform/uniform.H b/src/lagrangian/pdfs/uniform/uniform.H
similarity index 100%
rename from src/thermophysicalModels/pdfs/uniform/uniform.H
rename to src/lagrangian/pdfs/uniform/uniform.H
diff --git a/src/thermophysicalModels/Allwmake b/src/thermophysicalModels/Allwmake
index 9e9514e528fc6c294be1c485af79a1c09fc8953a..a3cb03d44c2ee2ca44481aa5af759be1cdc3bed5 100755
--- a/src/thermophysicalModels/Allwmake
+++ b/src/thermophysicalModels/Allwmake
@@ -12,7 +12,6 @@ wmake $makeOption basic
 wmake $makeOption reactionThermo
 wmake $makeOption laminarFlameSpeed
 wmake $makeOption chemistryModel
-wmake $makeOption pdfs
 wmake $makeOption radiationModels
 wmake $makeOption barotropicCompressibilityModel
 wmake $makeOption thermalPorousZone