diff --git a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.C b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.C
index 661a2ea7b2493e30259887570069a1424c9328a6..bf1a792c6f3014f608a264eeeeb81f1599ac009a 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.C
+++ b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.C
@@ -55,7 +55,7 @@ Foam::ChomiakInjector::ChomiakInjector
     ChomiakDict_(dict.subDict(typeName + "Coeffs")),
     dropletPDF_
     (
-        pdf::New
+        pdfs::pdf::New
         (
             ChomiakDict_.subDict("dropletPDF"),
             sm.rndGen()
diff --git a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.H b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.H
index 50de0a31dcdeeafbcc51e898edc403993291ab39..87c2d1d816a388814d48fd3b4b818f6b0b5f7ff6 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.H
+++ b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.H
@@ -64,7 +64,7 @@ private:
 
         dictionary ChomiakDict_;
 
-        autoPtr<pdf> dropletPDF_;
+        autoPtr<pdfs::pdf> dropletPDF_;
         scalarList maxSprayAngle_;
 
 
diff --git a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.C b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.C
index 883dc9c43191dd739dd39027879041c9371031b6..e266181c9cbcc936a82fb658ec3e2e7bd10350da 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.C
+++ b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.C
@@ -55,7 +55,7 @@ Foam::definedHollowConeInjector::definedHollowConeInjector
     definedHollowConeDict_(dict.subDict(typeName + "Coeffs")),
     dropletPDF_
     (
-        pdf::New
+        pdfs::pdf::New
         (
             definedHollowConeDict_.subDict("dropletPDF"),
             sm.rndGen()
diff --git a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.H b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.H
index 56d6241892ecee266bb7e5428335a8e4a5e90106..d5318120ec3452b47aad836647a9e144604c9980 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.H
+++ b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.H
@@ -61,7 +61,7 @@ private:
         typedef VectorSpace<Vector<scalar>, scalar, 2> pair;
 
         dictionary definedHollowConeDict_;
-        autoPtr<pdf> dropletPDF_;
+        autoPtr<pdfs::pdf> dropletPDF_;
 
         // inner and outer cone angle time histories
         // 2 column vectors = (time, coneAngle)
diff --git a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.C b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.C
index 40508fda7eeb4d028051954ff07a6cb7f5764b57..28bed642e0dd5860df15c9581125af95ecf84ad3 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.C
+++ b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.C
@@ -55,7 +55,7 @@ Foam::hollowConeInjector::hollowConeInjector
     hollowConeDict_(dict.subDict(typeName + "Coeffs")),
     dropletPDF_
     (
-        pdf::New
+        pdfs::pdf::New
         (
             hollowConeDict_.subDict("dropletPDF"),
             sm.rndGen()
diff --git a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.H b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.H
index 985d7c6073236e56c1a34849b8a8dea448b751ef..6df6552174dbc05257ee45c9bd6b1efdf878d7e5 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.H
+++ b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.H
@@ -59,7 +59,7 @@ private:
 
         dictionary hollowConeDict_;
 
-        autoPtr<pdf> dropletPDF_;
+        autoPtr<pdfs::pdf> dropletPDF_;
         scalarList innerAngle_;
         scalarList outerAngle_;