diff --git a/makefile b/makefile
index 3d2eb6f..6c0e9fa 100644
--- a/makefile
+++ b/makefile
@@ -109,6 +109,16 @@ else ifeq ($(CLUSTER),RAVEN)
   # For batch systems, set the following variable to the command used to run jobs. This variable is used by 'make test'.
   REGCOIL_COMMAND_TO_SUBMIT_JOB = srun
 
+else ifeq ($(CLUSTER),lazerson)
+  REGCOIL_HOST=macports
+  FC = mpif90
+  NETCDF_INC = $(shell nc-config --fflags)
+  NETCDF_LIB = $(shell nc-config --flibs)
+  EXTRA_COMPILE_FLAGS = -O2 -fexternal-blas -fopenmp -fallow-argument-mismatch -ffree-line-length-none $(NETCDF_INC)
+  EXTRA_LINK_FLAGS = -fopenmp -L/opt/local/lib -lopenblas $(NETCDF_LIB)
+  LIBSTELL_DIR = /Users/lazerson/bin/libstell_dir
+  LIBSTELL_FOR_REGCOIL = /Users/lazerson/bin/libstell.a
+
 else
   REGCOIL_HOST=macports
   FC = mpif90
diff --git a/regcoil_read_input.f90 b/regcoil_read_input.f90
index ec18f30..29bc43e 100644
--- a/regcoil_read_input.f90
+++ b/regcoil_read_input.f90
@@ -34,6 +34,10 @@ subroutine regcoil_read_input
      if (didFileAccessWork /= 0) then
         print *,"Error!  I was able to open the file ", trim(inputFilename), &
                " but not read data from the regcoil_nml namelist in it."
+        backspace(fileUnit)
+        read(fileUnit, fmt="(A)") inputFilename
+        print *, "Invalid line in namelist: ", trim(inputFilename)
+        print *, "(Error may be earlier)"
         if (didFileAccessWork==-1) then
            print *,"Make sure there is a carriage return after the / at the end of the namelist!"
         end if