diff --git a/logreader.c b/logreader.c
index 9ec3146d..79cf8809 100644
--- a/logreader.c
+++ b/logreader.c
@@ -383,12 +383,14 @@ static int LogReader(SConnection * pCon, SicsInterp * pSics, void *pData,
     tm = *localtime(&from);
     pathLen = 0;
     for (idir = 0; idir < ndirs; idir++) {
-      pathLen = LoggerVarPath(dirs[idir], path, sizeof path, var, &tm);
-      dr = opendir(path);
-      if (dr) {
-        nowi = nows[idir];
-        closedir(dr);
-        break;
+      if (dirs[idir][0] != '\0') {
+        pathLen = LoggerVarPath(dirs[idir], path, sizeof path, var, &tm);
+        dr = opendir(path);
+        if (dr) {
+          nowi = nows[idir];
+          closedir(dr);
+          break;
+        }
       }
     }