diff --git a/src/Utilities/Constants.f90 b/src/Utilities/Constants.f90
index 784476c424f..ea518fc1501 100644
--- a/src/Utilities/Constants.f90
+++ b/src/Utilities/Constants.f90
@@ -48,6 +48,7 @@ module ConstantsModule
   integer(I4B), parameter :: NAMEDBOUNDFLAG = -9 !< named bound flag
   integer(I4B), parameter :: LENPAKLOC = 34 !< maximum length of a package location
   integer(I4B), parameter :: IZERO = 0 !< integer constant zero
+  integer(I4B), parameter :: INODATA = -2147483647 !< integer no data constant
   integer(I4B), parameter :: IWETLAKE = 10000 !< integer constant for a dry lake
   integer(I4B), parameter :: MAXADPIT = 100 !< maximum advanced package Newton-Raphson iterations
   !