diff --git a/lab3/Makefile b/lab3/Makefile
index e6d004c..dfe2680 100644
--- a/lab3/Makefile
+++ b/lab3/Makefile
@@ -1,6 +1,6 @@
 CXX = g++
 CXXFLAGS = -Wall -Wextra -Wpedantic -Wshadow -Wnon-virtual-dtor -Wold-style-cast -Wcast-align -Wunused -Woverloaded-virtual -Wconversion -Wsign-conversion -Wnull-dereference -Wdouble-promotion -Wformat=2 -std=c++17
-#CXXFLAGS += -Werror
+CXXFLAGS += -g
 
 SRC = $(wildcard *.cc)
 HDR = $(wildcard *.h)
diff --git a/lab3/UserTableTest.cc b/lab3/UserTableTest.cc
index b50200b..03e142c 100644
--- a/lab3/UserTableTest.cc
+++ b/lab3/UserTableTest.cc
@@ -39,4 +39,8 @@ int main() {
         User ufind2 = tbl.find("Name Surname");
         assert(ufind2 != UserTable::user_not_found);
     }
+    {
+        auto t = UserTable("users.txt");
+        int r = testFindNbr(t);
+    }
 }