diff --git a/libraries/FFat/examples/FFat_Test/FFat_Test.ino b/libraries/FFat/examples/FFat_Test/FFat_Test.ino
index f36d922557e..26a0bcac3bd 100644
--- a/libraries/FFat/examples/FFat_Test/FFat_Test.ino
+++ b/libraries/FFat/examples/FFat_Test/FFat_Test.ino
@@ -52,6 +52,7 @@ void readFile(fs::FS &fs, const char * path){
     while(file.available()){
         Serial.write(file.read());
     }
+    file.close();
 }
 
 void writeFile(fs::FS &fs, const char * path, const char * message){
@@ -67,6 +68,7 @@ void writeFile(fs::FS &fs, const char * path, const char * message){
     } else {
         Serial.println("- write failed");
     }
+    file.close();
 }
 
 void appendFile(fs::FS &fs, const char * path, const char * message){
@@ -82,6 +84,7 @@ void appendFile(fs::FS &fs, const char * path, const char * message){
     } else {
         Serial.println("- append failed");
     }
+    file.close();
 }
 
 void renameFile(fs::FS &fs, const char * path1, const char * path2){
diff --git a/libraries/SPIFFS/examples/SPIFFS_Test/SPIFFS_Test.ino b/libraries/SPIFFS/examples/SPIFFS_Test/SPIFFS_Test.ino
index 730e90ebf50..15a71245d07 100644
--- a/libraries/SPIFFS/examples/SPIFFS_Test/SPIFFS_Test.ino
+++ b/libraries/SPIFFS/examples/SPIFFS_Test/SPIFFS_Test.ino
@@ -50,6 +50,7 @@ void readFile(fs::FS &fs, const char * path){
     while(file.available()){
         Serial.write(file.read());
     }
+    file.close();
 }
 
 void writeFile(fs::FS &fs, const char * path, const char * message){
@@ -65,6 +66,7 @@ void writeFile(fs::FS &fs, const char * path, const char * message){
     } else {
         Serial.println("- write failed");
     }
+    file.close();
 }
 
 void appendFile(fs::FS &fs, const char * path, const char * message){
@@ -80,6 +82,7 @@ void appendFile(fs::FS &fs, const char * path, const char * message){
     } else {
         Serial.println("- append failed");
     }
+    file.close();
 }
 
 void renameFile(fs::FS &fs, const char * path1, const char * path2){