diff --git a/tutorials/multiphase/reactingTwoPhaseEulerFoam/laminar/bubbleColumnIATE/constant/phaseProperties b/tutorials/multiphase/reactingTwoPhaseEulerFoam/laminar/bubbleColumnIATE/constant/phaseProperties
index a9d3c7b56a..c2193d4a3e 100644
--- a/tutorials/multiphase/reactingTwoPhaseEulerFoam/laminar/bubbleColumnIATE/constant/phaseProperties
+++ b/tutorials/multiphase/reactingTwoPhaseEulerFoam/laminar/bubbleColumnIATE/constant/phaseProperties
@@ -38,7 +38,7 @@ air
             }
             randomCoalescence
             {
-                Crc         0.04;
+                Crc         0.004;
                 C           3;
                 alphaMax    0.75;
             }
diff --git a/tutorials/multiphase/twoPhaseEulerFoam/laminar/bubbleColumnIATE/constant/phaseProperties b/tutorials/multiphase/twoPhaseEulerFoam/laminar/bubbleColumnIATE/constant/phaseProperties
index beefd86846..5aeca4f1a5 100644
--- a/tutorials/multiphase/twoPhaseEulerFoam/laminar/bubbleColumnIATE/constant/phaseProperties
+++ b/tutorials/multiphase/twoPhaseEulerFoam/laminar/bubbleColumnIATE/constant/phaseProperties
@@ -34,7 +34,7 @@ air
             }
             randomCoalescence
             {
-                Crc         0.04;
+                Crc         0.004;
                 C           3;
                 alphaMax    0.75;
             }