diff --git a/src/lagrangian/cfdemParticle/subModels/voidFractionModel/bigParticleVoidFraction/bigParticleVoidFraction.C b/src/lagrangian/cfdemParticle/subModels/voidFractionModel/bigParticleVoidFraction/bigParticleVoidFraction.C
index e7dc28bc..1ab0de24 100644
--- a/src/lagrangian/cfdemParticle/subModels/voidFractionModel/bigParticleVoidFraction/bigParticleVoidFraction.C
+++ b/src/lagrangian/cfdemParticle/subModels/voidFractionModel/bigParticleVoidFraction/bigParticleVoidFraction.C
@@ -72,7 +72,7 @@ bigParticleVoidFraction::bigParticleVoidFraction
     Info << "\n\n W A R N I N G - this model does not yet work properly! \n\n" << endl;
     //reading maxCellsPerParticle from dictionary
     maxCellsPerParticle_=readLabel(propsDict_.lookup("maxCellsPerParticle"));
-    if(alphaMin_ > 1 || alphaMin_ < 0.01){ FatalError<< "alphaMin shloud be > 1 and < 0.01." << abort(FatalError); }
+    if(alphaMin_ > 1 || alphaMin_ < 0.01) { FatalError << "alphaMin must have a value between 0.01 and 1.0." << abort(FatalError); }
 
     checkWeightNporosity(propsDict_);
 }