diff --git a/src/combustionModels/diffusionMulticomponent/diffusionMulticomponent.C b/src/combustionModels/diffusionMulticomponent/diffusionMulticomponent.C
index bc60afe054..5216838fa1 100644
--- a/src/combustionModels/diffusionMulticomponent/diffusionMulticomponent.C
+++ b/src/combustionModels/diffusionMulticomponent/diffusionMulticomponent.C
@@ -106,7 +106,7 @@ diffusionMulticomponent<CombThermoType, ThermoType>::init()
         const List<specieCoeffs>& rhs = reactions_[k].rhs();
 
         const label fuelIndex = species[fuelNames_[k]];
-        const label oxydantIndex = species[oxydantNames_[k]];
+        const label oxydantIndex = species[oxidantNames_[k]];
 
         const scalar Wu = specieThermo_[fuelIndex].W();
         const scalar Wox = specieThermo_[oxydantIndex].W();
@@ -169,14 +169,14 @@ diffusionMulticomponent
     RijPtr_(reactions_.size()),
     Ci_(reactions_.size(), 1.0),
     fuelNames_(this->coeffs().lookup("fuels")),
-    oxydantNames_(this->coeffs().lookup("oxydants")),
+    oxidantNames_(this->coeffs().lookup("oxydants")),
     qFuel_(reactions_.size()),
     stoicRatio_(reactions_.size()),
     s_(reactions_.size()),
     YoxStream_(reactions_.size(), 0.23),
     YfStream_(reactions_.size(), 1.0),
     sigma_(reactions_.size(), 0.02),
-    oxydantRes_(this->coeffs().lookup("oxydantRes")),
+    oxidantRes_(this->coeffs().lookup("oxidantRes")),
     ftCorr_(reactions_.size(), 0.0),
     alpha_(1),
     laminarIgn_(false)
@@ -275,7 +275,7 @@ diffusionMulticomponent<CombThermoType, ThermoType>::correct()
         for (label k=0; k < nReactions; k++)
         {
             const label fuelIndex = species[fuelNames_[k]];
-            const label oxydantIndex = species[oxydantNames_[k]];
+            const label oxydantIndex = species[oxidantNames_[k]];
 
             const volScalarField& Yfuel =
                 this->thermo().composition().Y(fuelIndex);
@@ -303,7 +303,7 @@ diffusionMulticomponent<CombThermoType, ThermoType>::correct()
             const volScalarField OAvailScaled
             (
                 "OAvailScaled",
-                Yox/max(oxydantRes_[k], 1e-3)
+                Yox/max(oxidantRes_[k], 1e-3)
             );
 
             const volScalarField preExp
@@ -499,7 +499,7 @@ diffusionMulticomponent<CombThermoType, ThermoType>::read()
     {
         this->coeffs().readIfPresent("Ci", Ci_);
         this->coeffs().readIfPresent("sigma", sigma_);
-        this->coeffs().readIfPresent("oxydantRes", oxydantRes_);
+        this->coeffs().readIfPresent("oxidantRes", oxidantRes_);
         this->coeffs().readIfPresent("ftCorr", ftCorr_);
         this->coeffs().readIfPresent("alpha", alpha_);
         this->coeffs().readIfPresent("laminarIgn", laminarIgn_);
diff --git a/src/combustionModels/diffusionMulticomponent/diffusionMulticomponent.H b/src/combustionModels/diffusionMulticomponent/diffusionMulticomponent.H
index 2d6b9531f7..54559b120a 100644
--- a/src/combustionModels/diffusionMulticomponent/diffusionMulticomponent.H
+++ b/src/combustionModels/diffusionMulticomponent/diffusionMulticomponent.H
@@ -41,8 +41,8 @@ Description
             of each reaction. The distribtion has the input parameter 'sigma'
             for standard deviation.
 
-    The variable prob is multiplied by the factor: 1  + pow2(O2/oxydantRes),
-    where oxydantRes is the residual oxydant specified for each reaction.
+    The variable prob is multiplied by the factor: 1  + pow2(O2/oxidantRes),
+    where oxidantRes is the residual oxydant specified for each reaction.
 
     In the combustion properties dictionary:
 
@@ -54,7 +54,7 @@ Description
         YoxStream   (0.23 0.23);    // Default to 0.23
         YfStream    (1.0 1.0);      // Default to 1.0
         sigma       (0.02 0.02);    // Default to 0.02
-        oxydantRes  (0.025 0.005);
+        oxidantRes  (0.025 0.005);
         ftCorr      (0.0 0.0);      // Default to 0.0
         laminarIgn  false;          // Default false
     }
@@ -113,7 +113,7 @@ class diffusionMulticomponent
         wordList fuelNames_;
 
         //- List of oxydants for each reaction
-        wordList oxydantNames_;
+        wordList oxidantNames_;
 
         //- Heat of combustion [J/Kg]
         scalarList qFuel_;
@@ -134,7 +134,7 @@ class diffusionMulticomponent
         scalarList sigma_;
 
         //- Residual oxydaser
-        scalarList oxydantRes_;
+        scalarList oxidantRes_;
 
         //- ft stochiometric correction
         scalarList ftCorr_;
diff --git a/tutorials/combustion/fireFoam/les/smallPoolFire2D/constant/combustionProperties b/tutorials/combustion/fireFoam/les/smallPoolFire2D/constant/combustionProperties
index 9bb64b657f..e6fb9e4e20 100644
--- a/tutorials/combustion/fireFoam/les/smallPoolFire2D/constant/combustionProperties
+++ b/tutorials/combustion/fireFoam/les/smallPoolFire2D/constant/combustionProperties
@@ -35,11 +35,11 @@ diffusionMulticomponentCoeffs
 {
     Ci          (1.0 1.5);
     fuels       (CH4 CO);
-    oxydants    (O2 O2);
+    oxidants    (O2 O2);
     YoxStream   (0.23 0.23);
     YfStream    (1.0 1.0);
     sigma       (0.02 0.02);
-    oxydantRes  (0.015 0.005);
+    oxidantRes  (0.015 0.005);
     ftCorr      (0  0);
     laminarIgn  false;
 }