2 files changed, 3 insertions, 3 deletions

diff --git a/libbb/compare_string_array.c b/libbb/compare_string_array.c
index 151b50817..ec7f94e79 100644
--- a/libbb/compare_string_array.c
+++ b/libbb/compare_string_array.c
@@ -23,7 +23,7 @@ int index_in_strings(const char *strings, const char *key)
 {
         int idx = 0;
 
-        while (strings[0]) {
+        while (*strings) {
                 if (strcmp(strings, key) == 0) {
                         return idx;
                 }
@@ -57,7 +57,7 @@ int index_in_substrings(const char *strings, const char *key)
 
         if (len) {
                 int idx = 0;
-                while (strings[0]) {
+                while (*strings) {
                         if (strncmp(strings, key, len) == 0) {
                                 return idx;
                         }
diff --git a/networking/libiproute/ip_parse_common_args.c b/networking/libiproute/ip_parse_common_args.c
index 294bde540..5e4012b81 100644
--- a/networking/libiproute/ip_parse_common_args.c
+++ b/networking/libiproute/ip_parse_common_args.c
@@ -54,7 +54,7 @@ char **ip_parse_common_args(char **argv)
                                 break;
                         }
                 }
-                arg = index_in_strings(ip_common_commands, opt);
+                arg = index_in_substrings(ip_common_commands, opt);
                 if (arg < 0)
                         bb_show_usage();
                 if (arg == ARG_oneline) {