diff --git a/src/core/lib/misc.c b/src/core/lib/misc.c
index 59e57e2..026d148 100644
--- a/src/core/lib/misc.c
+++ b/src/core/lib/misc.c
@@ -315,6 +315,14 @@ void deallocateOutput(outputFlags flags)
 {
     free(flags.outputText);
     free(flags.usedKey);
+
+    flags.elapsedTime = 0;
+    flags.exitCode = SUCCESS;
+    flags.repeatedKeySize = 0;
+    flags.unusedKeySize = 0;
+
+    flags.outputText = NULL;
+    flags.usedKey = NULL;
 }
 
 boolean checkKey(char *key)
diff --git a/src/logger/lib/test/main.c b/src/logger/lib/test/main.c
index d14b25f..f763bce 100644
--- a/src/logger/lib/test/main.c
+++ b/src/logger/lib/test/main.c
@@ -77,5 +77,6 @@ int main(void)
     free(usedKey);
     deallocateLogger(logger);
     deallocateDecryptedOutput(decrypted);
+
     return exitCode;
 }
\ No newline at end of file
diff --git a/src/logger/lib/utils.c b/src/logger/lib/utils.c
index 05f6c1e..840f7ac 100644
--- a/src/logger/lib/utils.c
+++ b/src/logger/lib/utils.c
@@ -33,6 +33,9 @@ void deallocateLogger(logFile logger)
 {
     close(logger.file);
     free(logger.fileName);
+
+    logger.fileName = NULL;
+    logger.file = INVALID_FILE;
 }
 
 void deallocateDecryptedOutput(decryptedOutput output)