diff --git a/source/disk_init.c b/source/disk_init.c
index 643ab9001..4b41a29ad 100644
--- a/source/disk_init.c
+++ b/source/disk_init.c
@@ -509,7 +509,7 @@ qdisk_save (diskfile, ichoice)
     ttot = pow (qdisk.t[n], 4) + pow (theat, 4);
     ttot = pow (ttot, 0.25);
     fprintf (qptr,
-             "%9.4e %9.4e %0.4e %8.3e %8.3e  %8.3e %10ld %8.3e %10ld %8.3e %8.3e %8.3e %10.3e %8.3e\n",
+             "%9.4e %9.4e %0.4e %8.3e %8.3e  %8.3e %10d %8.3e %10d %8.3e %8.3e %8.3e %10.3e %8.3e\n",
              qdisk.r[n], qdisk.v[n], zdisk (qdisk.r[n]), qdisk.t[n], qdisk.g[n],
              qdisk.emit[n], qdisk.nphot[n], qdisk.heat[n], qdisk.nhit[n], ratio[n], theat, qdisk.t_hit[n], qdisk.w[n], ttot);
   }
diff --git a/source/disk_photon_gen.c b/source/disk_photon_gen.c
index 5c9d88291..826f3d51d 100644
--- a/source/disk_photon_gen.c
+++ b/source/disk_photon_gen.c
@@ -277,7 +277,7 @@ disk_photon_summary (filename, mode)
       x = 0;
     else
       x = disk.nphot[n] / (disk.r[n] - disk.r[n - 1]);
-    fprintf (ptr, "%d %8.2e %8.2e %8ld %8.2e %8ld\n", n, disk.r[n], disk.t[n], disk.nphot[n], x, disk.nhit[n]);
+    fprintf (ptr, "%d %8.2e %8.2e %8d %8.2e %8d\n", n, disk.r[n], disk.t[n], disk.nphot[n], x, disk.nhit[n]);
   }
 
   fclose (ptr);
diff --git a/source/python.h b/source/python.h
index 3f4598060..84bdb9bef 100644
--- a/source/python.h
+++ b/source/python.h
@@ -760,8 +760,8 @@ struct xdisk
   double ave_freq[NRINGS];      /**< The flux weighted average of frequency of photons hitting each annulus */
   double w[NRINGS];             /**< The weight relative to a BB of the photons that hit the disk */
   double t_hit[NRINGS];         /**< The effective T of photons hitting the disk, based on the average frequency */
-  int64_t nphot[NRINGS];        /**< The number of disk photons created in each annulus */
-  int64_t nhit[NRINGS];         /**< The number of photons which hit each annulus */
+  int nphot[NRINGS];        /**< The number of disk photons created in each annulus */
+  int nhit[NRINGS];         /**< The number of photons which hit each annulus */
 };
 extern struct xdisk disk, qdisk;   /**<  disk defines zones in the disk which in a specified frequency band emit equal amounts
                                    of radiation. disk gets reinitialized whenever the frequency interval of interest