diff --git a/sim_disk.c b/sim_disk.c
index 3874cbce..e5f88ace 100644
--- a/sim_disk.c
+++ b/sim_disk.c
@@ -1564,11 +1564,8 @@ switch (DK_GET_FMT (uptr)) {                            /* case on format */
     }
 uptr->filename = (char *) calloc (CBUFSIZE, sizeof (char));/* alloc name buf */
 uptr->disk_ctx = ctx = (struct disk_context *)calloc(1, sizeof(struct disk_context));
-if ((uptr->filename == NULL) || (uptr->disk_ctx == NULL)) {
-    free (uptr->filename);
-    free (uptr->disk_ctx);
+if ((uptr->filename == NULL) || (uptr->disk_ctx == NULL))
     return _err_return (uptr, SCPE_MEM);
-    }
 strncpy (uptr->filename, cptr, CBUFSIZE);               /* save name */
 ctx->sector_size = (uint32)sector_size;                 /* save sector_size */
 ctx->capac_factor = ((dptr->dwidth / dptr->aincr) == 16) ? 2 : 1; /* save capacity units (word: 2, byte: 1) */