diff --git a/ps/output.c b/ps/output.c
index 9644ed3b..1f7e4940 100644
--- a/ps/output.c
+++ b/ps/output.c
@@ -1994,17 +1994,6 @@ void show_one_proc(const proc_t *restrict const p, const format_node *restrict f
 }
 
 
-#ifdef TESTING
-static void sanity_check(void){
-  format_struct *fs = format_array;
-  while((fs->spec)[0] != '~'){
-    if(strlen(fs->head) > fs->width) printf("%d %s\n",strlen(fs->head),fs->spec);
-    fs++;
-  }
-}
-#endif
-
-
 void init_output(void){
   int outbuf_pages;
   char *outbuf;
diff --git a/ps/stacktrace.c b/ps/stacktrace.c
index a4e2938c..a0b4755c 100644
--- a/ps/stacktrace.c
+++ b/ps/stacktrace.c
@@ -179,7 +179,9 @@ static void stack_trace_sigsegv(int signum){
 }
 
 /************/
+#ifdef DEBUG
 void init_stack_trace(char *prog_name){
   stored_prog_name = prog_name;
   signal(SIGSEGV, stack_trace_sigsegv);
 }
+#endif