diff --git a/mxqsub.c b/mxqsub.c
index 7ed7e69a..a23383be 100644
--- a/mxqsub.c
+++ b/mxqsub.c
@@ -67,7 +67,7 @@ static void print_usage(void)
     "\n"
     "  -j, --processors=NUMBER  set number of processors    (default: 1)\n"
     "  -m, --memory=SIZE        set amount of memory        (default: 2G)\n"
-    "  --tmpdir=SIZE            set size of MXQ_JOB_TMPDIR  (default: 100G)\n"
+    "  --tmpdir=SIZE            set size of MXQ_JOB_TMPDIR  (default: 10G)\n"
     "  --gpu                    request a gpu\n"
     "  --blacklist=STRING       set list of blacklisted servers (default: '')\n"
     "  --whitelist=STRING       set list of whitelisted servers (default: '')\n"
@@ -803,7 +803,7 @@ int main(int argc, char *argv[])
     arg_debug          = 0;
     arg_jobflags       = 0;
     arg_groupid        = UINT64_UNSET;
-    arg_tmpdir         = 100;      // 100G
+    arg_tmpdir         = 10;       // 10G
     arg_blacklist      = NULL;
     arg_whitelist      = NULL;
     arg_prerequisites  = "";