diff --git a/Makefile b/Makefile
index 44dce18..d6843b4 100644
--- a/Makefile
+++ b/Makefile
@@ -25,7 +25,7 @@ DESCRIPTION = CS50 Library for C
 MAINTAINER = CS50 <sysadmins@cs50.harvard.edu>
 NAME = libcs50
 OLD_NAMES = lib50-c library50-c
-VERSION = 7.2.1
+VERSION = 7.2.2
 
 .PHONY: bash
 bash:
diff --git a/src/cs50.c b/src/cs50.c
index 70753f3..09e9833 100644
--- a/src/cs50.c
+++ b/src/cs50.c
@@ -277,7 +277,7 @@ static string *strings = NULL;
 string get_string(void)
 {
     // check whether we have room for another string
-    if (allocations == SIZE_MAX)
+    if (allocations * sizeof(string) == SIZE_MAX)
     {
         return NULL;
     }