diff --git a/du6/program.c b/du6/program.c
index b7a2870..b18f611 100644
--- a/du6/program.c
+++ b/du6/program.c
@@ -60,13 +60,13 @@ int main() {
    	puts("Ziadne prihlasky");
    }
    for (int j = 0; j < i; j++) {
-      for (int j = 0; j < i; j++) {
-         if (strcmp(database[j], database[j]) < 0) {
+      for (int k = 0; k < i; k++) {
+         if (strcmp(database[j], database[k]) < 0) {
             char buffer[30];
-            memset(buffer, 0, sizeof(buffer));
+            //memset(buffer, 0, sizeof(buffer));
             strcpy(buffer, database[j]);
-            strcpy(database[j], database[j]);
-            strcpy(database[j], buffer);
+            strcpy(database[j], database[k]);
+            strcpy(database[k], buffer);
          }
       }
    }