diff --git a/src/sbbs3/xtrn.cpp b/src/sbbs3/xtrn.cpp
index 6c76cc6cd70b30feaa6da8142d7ec925d7bf7bd9..70e1d4e72b71b582712640c7f3ee9b956473f6d6 100644
--- a/src/sbbs3/xtrn.cpp
+++ b/src/sbbs3/xtrn.cpp
@@ -1582,6 +1582,8 @@ int sbbs_t::external(const char* cmdline, int mode, const char* startup_dir)
 			 * to a value we may have made up.
 			 * TODO: We can set stuff from the user term here...
 			 */
+			for (i = 0; i < (sizeof(term.c_cc) / sizeof(term.c_cc[0])); i++)
+				term.c_cc[i] = _POSIX_VDISABLE;
 #ifdef VEOF
 			term.c_cc[VEOF] = CEOF;
 #endif