diff --git a/src/cli.c b/src/cli.c
index 1f14abe..8d9477f 100644
--- a/src/cli.c
+++ b/src/cli.c
@@ -374,8 +374,16 @@ int index_args_validate(index_args_t *args, int argc, const char **argv) {
     LOG_DEBUGF("cli.c", "arg es_index=%s", args->es_index)
     LOG_DEBUGF("cli.c", "arg index_path=%s", args->index_path)
     LOG_DEBUGF("cli.c", "arg script_path=%s", args->script_path)
-    LOG_DEBUGF("cli.c", "arg async_script=%s", args->async_script)
-    LOG_DEBUGF("cli.c", "arg script=%s", args->script)
+
+    char log_buf[5000];
+    strncpy(log_buf, args->script, sizeof(log_buf));
+    *(log_buf + sizeof(log_buf) - 1) = '\0';
+    LOG_DEBUGF("cli.c", "arg async_script=%s", log_buf)
+
+    strncpy(log_buf, args->script, sizeof(log_buf));
+    *(log_buf + sizeof(log_buf) - 1) = '\0';
+    LOG_DEBUGF("cli.c", "arg script=%s", log_buf)
+
     LOG_DEBUGF("cli.c", "arg print=%d", args->print)
     LOG_DEBUGF("cli.c", "arg es_mappings_path=%s", args->es_mappings_path)
     LOG_DEBUGF("cli.c", "arg es_mappings=%s", args->es_mappings)
@@ -535,6 +543,11 @@ int exec_args_validate(exec_args_t *args, int argc, const char **argv) {
     }
 
     LOG_DEBUGF("cli.c", "arg script_path=%s", args->script_path)
-    LOG_DEBUGF("cli.c", "arg script=%s", args->script)
+
+    char log_buf[5000];
+    strncpy(log_buf, args->script, sizeof(log_buf));
+    *(log_buf + sizeof(log_buf) - 1) = '\0';
+    LOG_DEBUGF("cli.c", "arg script=%s", log_buf)
+
     return 0;
 }
diff --git a/src/log.c b/src/log.c
index d5a5a29..5453a84 100644
--- a/src/log.c
+++ b/src/log.c
@@ -48,6 +48,12 @@ void vsist_logf(const char *filepath, int level, char *format, va_list ap) {
     size_t maxsize = sizeof(log_str) - log_len;
     log_len += vsnprintf(log_str + log_len, maxsize, format, ap);
 
+    if (log_len >= maxsize) {
+        fprintf(stderr, "([%s] FIXME: Log string is too long to display: %dB)\n",
+                log_levels[level], log_len);
+        return;
+    }
+
     if (is_tty) {
         log_len += sprintf(log_str + log_len, "\033[0m\n");
     } else {