diff --git a/cboard.c b/sysmisc.c
similarity index 99%
rename from cboard.c
rename to sysmisc.c
index 2cea9cc..b1d32db 100644
--- a/cboard.c
+++ b/sysmisc.c
@@ -1,4 +1,4 @@
-#include "cboard.h"
+#include "sysmisc.h"
 #include "gbuffer.h"
 #include <ctype.h>
 
diff --git a/cboard.h b/sysmisc.h
similarity index 100%
rename from cboard.h
rename to sysmisc.h
diff --git a/tool b/tool
index 8d0e7ec..056d785 100755
--- a/tool
+++ b/tool
@@ -308,7 +308,7 @@ build_target() {
       out_exe=cli
       ;;
     orca|tui)
-      add source_files osc_out.c term_util.c cboard.c tui_main.c
+      add source_files osc_out.c term_util.c sysmisc.c tui_main.c
       add cc_flags -D_XOPEN_SOURCE_EXTENDED=1
       # thirdparty headers (like sokol_time.h) should get -isystem for their
       # include dir so that any warnings they generate with our warning flags
diff --git a/tui_main.c b/tui_main.c
index 1552701..d57f4ec 100644
--- a/tui_main.c
+++ b/tui_main.c
@@ -1,10 +1,10 @@
 #include "bank.h"
 #include "base.h"
-#include "cboard.h"
 #include "field.h"
 #include "gbuffer.h"
 #include "osc_out.h"
 #include "sim.h"
+#include "sysmisc.h"
 #include "term_util.h"
 #include <getopt.h>
 #include <locale.h>