diff --git a/src/common/m_constants.fpp b/src/common/m_constants.fpp
index 3e5eb2fad..197d21d6c 100644
--- a/src/common/m_constants.fpp
+++ b/src/common/m_constants.fpp
@@ -22,7 +22,7 @@ module m_constants
     integer, parameter  :: dflt_int = -100          !< Default integer value
     integer, parameter  :: fourier_rings = 5        !< Fourier filter ring limit
     integer, parameter  :: num_fluids_max = 10      !< Maximum number of fluids in the simulation
-    integer, parameter  :: num_probes_max = 10      !< Maximum number of flow probes in the simulation
+    integer, parameter  :: num_probes_max = 64      !< Maximum number of flow probes in the simulation
     integer, parameter  :: num_patches_max = 10     !< Maximum number of IC patches
     integer, parameter  :: num_ib_airfoils_max = 5  !< Maximum number of ib_airfoil instances
     integer, parameter  :: num_stl_models_max = 10
diff --git a/toolchain/mfc/params/definitions.py b/toolchain/mfc/params/definitions.py
index ca888ab52..05ddc7ba7 100644
--- a/toolchain/mfc/params/definitions.py
+++ b/toolchain/mfc/params/definitions.py
@@ -27,7 +27,7 @@ def _fc(name: str, default: int) -> int:
 
 
 NF = _fc("num_fluids_max", 10)  # fluid_pp
-NPR = _fc("num_probes_max", 10)  # probe, acoustic
+NPR = _fc("num_probes_max", 64)  # probe, acoustic
 NB = _fc("num_bc_patches_max", 10)  # patch_bc
 NUM_PATCHES_MAX = _fc("num_patches_max", 10)  # patch_icpp (Fortran array bound)
 NIB = _fc("num_ib_patches_max_namelist", 54000)  # patch_ib namelist array bound