diff --git a/intern/mantaflow/intern/MANTA_main.cpp b/intern/mantaflow/intern/MANTA_main.cpp
index 729cb151a39..0dbbd1ee9d0 100644
--- a/intern/mantaflow/intern/MANTA_main.cpp
+++ b/intern/mantaflow/intern/MANTA_main.cpp
@@ -56,7 +56,8 @@ using std::to_string;
 atomic<int> MANTA::solverID(0);
 int MANTA::with_debug(0);
 
-MANTA::MANTA(int *res, FluidModifierData *fmd) : mCurrentID(++solverID)
+MANTA::MANTA(int *res, FluidModifierData *fmd)
+    : mCurrentID(++solverID), mMaxRes(fmd->domain->maxres)
 {
   if (with_debug)
     cout << "FLUID: " << mCurrentID << " with res(" << res[0] << ", " << res[1] << ", " << res[2]
@@ -85,11 +86,10 @@ MANTA::MANTA(int *res, FluidModifierData *fmd) : mCurrentID(++solverID)
   mUsingInvel = (fds->active_fields & FLUID_DOMAIN_ACTIVE_INVEL);
   mUsingOutflow = (fds->active_fields & FLUID_DOMAIN_ACTIVE_OUTFLOW);
 
-  /* Simulation constants. */
-  mResX = res[0];
+  /* Simulation constants */
+  mResX = res[0]; /* Current size of domain (will adjust with adaptive domain). */
   mResY = res[1];
   mResZ = res[2];
-  mMaxRes = MAX3(mResX, mResY, mResZ);
   mTotalCells = mResX * mResY * mResZ;
   mResGuiding = fds->res;
 
diff --git a/intern/mantaflow/intern/MANTA_main.h b/intern/mantaflow/intern/MANTA_main.h
index 68a5b427e7d..6425614cf4b 100644
--- a/intern/mantaflow/intern/MANTA_main.h
+++ b/intern/mantaflow/intern/MANTA_main.h
@@ -38,7 +38,6 @@ using std::vector;
 struct MANTA {
  public:
   MANTA(int *res, struct FluidModifierData *fmd);
-  MANTA(){};
   virtual ~MANTA();
 
   /* Mirroring Mantaflow structures for particle data (pVel also used for mesh vert vels). */
@@ -745,7 +744,7 @@ struct MANTA {
   unordered_map<string, string> mRNAMap;
 
   /* The ID of the solver objects will be incremented for every new object. */
-  int mCurrentID;
+  const int mCurrentID;
 
   bool mUsingHeat;
   bool mUsingColors;
@@ -775,7 +774,7 @@ struct MANTA {
   int mResX;
   int mResY;
   int mResZ;
-  int mMaxRes;
+  const int mMaxRes;
 
   int mResXNoise;
   int mResYNoise;