diff --git a/frontend/src/pwgen.c b/frontend/src/pwgen.c
index 8a8fad9..b5f77b2 100644
--- a/frontend/src/pwgen.c
+++ b/frontend/src/pwgen.c
@@ -40,11 +40,24 @@ static const char PASSWD_SYMBOLS[] =
 
 #define PASSPHRASE_BUFFSIZE (SLUNKCRYPT_PWDLEN_MAX + 2U)
 
+static void trim_end_of_line(char *const buffer)
+{
+	size_t length;
+	for (length = strlen(buffer); length > 0U; --length)
+	{
+		const char last = buffer[length - 1U];
+		if ((last != '\r') && (last != '\n') && (last != '\f'))
+		{
+			break;
+		}
+	}
+	buffer[length] = '\0';
+}
+
 char *read_passphrase(const CHR *const file_name)
 {
-	size_t str_len = 0U;
-	CHR  *passphrase_path = NULL;
 	char *buffer = NULL;
+	CHR  *passphrase_path = NULL;
 	FILE *passphrase_file = NULL;
 
 	if ((!file_name) || (!file_name[0U]))
@@ -84,11 +97,7 @@ char *read_passphrase(const CHR *const file_name)
 			buffer[0U] = '\0';
 			goto finish;
 		}
-		str_len = strlen(buffer);
-		while ((str_len > 0U) && ((buffer[str_len - 1U] == '\r') || (buffer[str_len - 1U] == '\n')))
-		{
-			buffer[--str_len] = '\0';
-		}
+		trim_end_of_line(buffer);
 	}
 	while (!buffer[0U]);