diff --git a/src/preferences/network/EthernetSettingsView.cpp b/src/preferences/network/EthernetSettingsView.cpp
index 09362bdf7a..880073e346 100644
--- a/src/preferences/network/EthernetSettingsView.cpp
+++ b/src/preferences/network/EthernetSettingsView.cpp
@@ -345,22 +345,28 @@ EthernetSettingsView::_SaveConfiguration()
 void
 EthernetSettingsView::_SaveDNSConfiguration()
 {
-	FILE* fp = fopen("/etc/resolv.conf", "w");
-	if (fp == NULL)
+	BFile file("/etc/resolv.conf",
+		B_CREATE_FILE | B_ERASE_FILE | B_WRITE_ONLY);
+	if (file.InitCheck() < B_OK) {
+		fprintf(stderr, "failed to open /etc/resolv.conf for writing: %s\n",
+			strerror(file.InitCheck()));
 		return;
+	}
 
-	fprintf(fp, "# Generated by Network Preflet\n");
+	BString content("# Generated by Network Preflet\n");
 	// loop over all adapters
 	for (int i = 0; i < fSettings.CountItems(); i++) {
 		Settings* settings = fSettings.ItemAt(i);
 		for (int j = 0; j < settings->fNameservers.CountItems(); j++) {
 			if (settings->fNameservers.ItemAt(j)->Length() > 0) {
-				fprintf(fp, "nameserver\t%s\n", 
-					settings->fNameservers.ItemAt(j)->String());
+				content << "nameserver\t"
+					<< settings->fNameservers.ItemAt(j)->String()
+					<< "\n";
 			}
 		}
 	}
-	fclose(fp);	
+
+	file.Write(content.String(), content.Length());
 }