diff --git a/applications/solvers/lagrangian/DPMFoam/DPMFoam.C b/applications/solvers/lagrangian/DPMFoam/DPMFoam.C
index 9c97968c1cbd3e14531c421119e59ad38af9cb55..513c123ddfef034b9c32e9df4b8810241ca17f16 100644
--- a/applications/solvers/lagrangian/DPMFoam/DPMFoam.C
+++ b/applications/solvers/lagrangian/DPMFoam/DPMFoam.C
@@ -106,7 +106,7 @@ int main(int argc, char *argv[])
             zeroGradientFvPatchVectorField::typeName
         );
 
-        cloudVolSUSu.internalField() = - cloudSU.source()/mesh.V();
+        cloudVolSUSu.internalField() = -cloudSU.source()/mesh.V();
         cloudVolSUSu.correctBoundaryConditions();
         cloudSU.source() = vector::zero;