diff --git a/Makefile b/Makefile
index dea98db..ed34dc5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # Compiler settings
 CC = gcc
-CFLAGS = -Wall -g -O2 -Isrc -std=c11
-LDFLAGS = -lreadline
+CFLAGS = -Wall -Wextra -Werror -g -O2 -D_FORTIFY_SOURCE=2 -fstack-protector-strong -fPIE -Isrc -std=c11
+LDFLAGS = -lreadline -pie -Wl,-z,relro,-z,now
 
 # Source directories
 SRC_DIR = src
@@ -25,12 +25,14 @@ TEST_EXEC = test_suite
 # Main program target
 $(EXEC): $(MAIN_OBJ)
 	$(CC) $(CFLAGS) $(MAIN_OBJ) -o $(EXEC) $(LDFLAGS)
+	chmod 750 $(EXEC)
 
 # Test suite target
 test: $(TEST_EXEC)
 
 $(TEST_EXEC): $(COMMON_OBJ) $(TEST_OBJ)
 	$(CC) $(CFLAGS) $^ -o $(TEST_EXEC) $(LDFLAGS)
+	chmod 750 $(TEST_EXEC)
 
 # Object file rules
 %.o: %.c
@@ -38,7 +40,8 @@ $(TEST_EXEC): $(COMMON_OBJ) $(TEST_OBJ)
 
 # Clean target
 clean:
-	rm -f $(EXEC) $(TEST_EXEC) $(SRC_DIR)/*.o $(TEST_DIR)/*.o
+	rm -f $(EXEC) $(TEST_EXEC)
+	find $(SRC_DIR) $(TEST_DIR) -name '*.o' -type f -delete 2>/dev/null || true
 
 # Phony targets
 .PHONY: clean test