diff --git a/Makefile.am b/Makefile.am
index 067bddcb..4345a370 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -212,7 +212,7 @@ CHECKFLAGS_ALPHA = $(CHECKFLAGS_COMMON) --test-force-order-alpha
 CHECKFLAGS_PHYSICAL = $(CHECKFLAGS_COMMON) --test-force-order-physical -q -q -q
 
 # Verbose options
-CHECKFLAGS_VERBOSE = $(CHECKFLAGS_ALPHA) -v -G
+CHECKFLAGS_VERBOSE = $(CHECKFLAGS_ALPHA) -v --gui
 
 # Quiet options
 CHECKFLAGS = $(CHECKFLAGS_ALPHA) -q -q -q
diff --git a/cmdline/list.c b/cmdline/list.c
index 421c8c58..761aeaed 100644
--- a/cmdline/list.c
+++ b/cmdline/list.c
@@ -61,7 +61,8 @@ void state_list(struct snapraid_state* state)
 			++file_count;
 			file_size += file->size;
 
-			log_tag("file:%s:%s:%" PRIu64 ":%" PRIi64 ":%u:%" PRIi64 "\n", disk->name, esc_tag(file->sub, esc_buffer), file->size, file->mtime_sec, file->mtime_nsec, file->inode);
+			if (state->opt.gui_verbose)
+				log_tag("file:%s:%s:%" PRIu64 ":%" PRIi64 ":%u:%" PRIi64 "\n", disk->name, esc_tag(file->sub, esc_buffer), file->size, file->mtime_sec, file->mtime_nsec, file->inode);
 
 			t = file->mtime_sec;
 #if HAVE_LOCALTIME_R
@@ -100,7 +101,8 @@ void state_list(struct snapraid_state* state)
 
 			++link_count;
 
-			log_tag("link_%s:%s:%s:%s\n", type, disk->name, esc_tag(slink->sub, esc_buffer), esc_tag(slink->linkto, esc_buffer_alt));
+			if (state->opt.gui_verbose)
+				log_tag("link_%s:%s:%s:%s\n", type, disk->name, esc_tag(slink->sub, esc_buffer), esc_tag(slink->linkto, esc_buffer_alt));
 
 			printf("%12s ", type);
 			printf("                 ");
diff --git a/cmdline/scan.c b/cmdline/scan.c
index 9d03dac0..0452ca01 100644
--- a/cmdline/scan.c
+++ b/cmdline/scan.c
@@ -174,7 +174,7 @@ static void scan_link(struct snapraid_scan* scan, int is_diff, const char* sub,
 			/* it's equal */
 			++scan->count_equal;
 
-			if (state->opt.gui) {
+			if (state->opt.gui_verbose) {
 				log_tag("scan:equal:%s:%s\n", disk->name, esc_tag(slink->sub, esc_buffer));
 			}
 		} else {
@@ -804,7 +804,7 @@ static void scan_file(struct snapraid_scan* scan, int is_diff, const char* sub,
 				/* otherwise it's equal */
 				++scan->count_equal;
 
-				if (state->opt.gui) {
+				if (state->opt.gui_verbose) {
 					log_tag("scan:equal:%s:%s\n", disk->name, esc_tag(file->sub, esc_buffer));
 				}
 			}
@@ -969,7 +969,7 @@ static void scan_file(struct snapraid_scan* scan, int is_diff, const char* sub,
 				/* meaning, and then we don't even save them */
 				++scan->count_equal;
 
-				if (state->opt.gui) {
+				if (state->opt.gui_verbose) {
 					log_tag("scan:equal:%s:%s\n", disk->name, esc_tag(file->sub, esc_buffer));
 				}
 			}
diff --git a/cmdline/snapraid.c b/cmdline/snapraid.c
index 7c40e4a1..46666dcb 100644
--- a/cmdline/snapraid.c
+++ b/cmdline/snapraid.c
@@ -682,6 +682,8 @@ void config(char* conf, size_t conf_size, const char* argv0)
 #define OPT_TEST_SPEED_PERIOD 307
 #define OPT_TEST_SPEED_DISKS_NUMBER 308
 #define OPT_TEST_SPEED_BLOCKS_SIZE 309
+#define OPT_TEST_GUI 310
+#define OPT_TEST_GUI_VERBOSE 311
 
 #if HAVE_GETOPT_LONG
 static struct option long_options[] = {
@@ -717,9 +719,10 @@ static struct option long_options[] = {
 	{ "gen-conf", 1, 0, 'C' },
 	{ "verbose", 0, 0, 'v' },
 	{ "quiet", 0, 0, 'q' },
-	{ "gui", 0, 0, 'G' }, /* undocumented GUI interface option */
 	{ "help", 0, 0, 'H' },
 	{ "version", 0, 0, 'V' },
+	{ "gui", 0, 0, OPT_TEST_GUI }, /* undocumented GUI interface option (it was also 'G' in the past) */
+	{ "gui-verbose", 0, 0, OPT_TEST_GUI_VERBOSE }, /* undocumented GUI interface option */
 
 	/* The following are test specific options, DO NOT USE! */
 
@@ -866,8 +869,9 @@ static struct option long_options[] = {
  * Free letters: gIjJkKMnPQrtuxXWz
  *
  * The 's' letter is used in main.c
+ * The 'G' letter is free but only from 13.1
  */
-#define OPTIONS "c:f:d:mebp:o:S:B:L:i:l:AZEUDNFRahTC:vqHVGw:"
+#define OPTIONS "c:f:d:mebp:o:S:B:L:i:l:AZEUDNFRahTC:vqHVw:"
 
 volatile int global_interrupt = 0;
 
@@ -1181,9 +1185,13 @@ int snapraid_main(int argc, char* argv[])
 		case 'q' :
 			--msg_level;
 			break;
-		case 'G' :
+		case OPT_TEST_GUI :
 			opt.gui = 1;
 			break;
+		case OPT_TEST_GUI_VERBOSE :
+			opt.gui = 1;
+			opt.gui_verbose = 1;
+			break;
 		case 'H' :
 			usage(conf);
 			exit(EXIT_SUCCESS);
diff --git a/cmdline/state.h b/cmdline/state.h
index 1fcf1e74..5937f7b9 100644
--- a/cmdline/state.h
+++ b/cmdline/state.h
@@ -66,7 +66,8 @@ const char* lev_config_name(unsigned level);
  * For all these options a value of 0 means nothing set, and to use the default.
  */
 struct snapraid_option {
-	int gui; /**< Gui output. */
+	int gui; /**< GUI output. */
+	int gui_verbose; /**< GUI verbose output. */
 	int auditonly; /**< In check, checks only the hash and not the parity. */
 	int badfileonly; /**< In fix, fixes only files marked as bad. */
 	int badblockonly; /**< In fix, fixes only the blocks marked as bad. */
diff --git a/cmdline/status.c b/cmdline/status.c
index d9ca8cb0..01af483c 100644
--- a/cmdline/status.c
+++ b/cmdline/status.c
@@ -350,7 +350,7 @@ int state_status(struct snapraid_state* state)
 			timemap[count++] = scrub_time;
 		}
 
-		if (state->opt.gui) {
+		if (state->opt.gui_verbose) {
 			if (info != 0)
 				log_tag("block:%u:%" PRIu64 ":%s:%s:%s:%s\n", i, (uint64_t)info_get_time(info), one_valid ? "used" : "", one_invalid ? "unsynced" : "", info_get_bad(info) ? "bad" : "", info_get_rehash(info) ? "rehash" : "");
 			else