diff --git a/reactos/base/applications/taskmgr/perfpage.c b/reactos/base/applications/taskmgr/perfpage.c
index a14b479decc..84b4923a6d1 100644
--- a/reactos/base/applications/taskmgr/perfpage.c
+++ b/reactos/base/applications/taskmgr/perfpage.c
@@ -374,7 +374,7 @@ DWORD WINAPI PerformancePageRefreshThread(void *lpParameter)
                                sizeof(szChargeLimitFormat));
 
             wsprintfW(Text, szMemUsage, szChargeTotalFormat, szChargeLimitFormat,
-                      (UINT)((CommitChargeTotal * 100) / CommitChargeLimit));
+                      (CommitChargeLimit ? ((CommitChargeTotal * 100) / CommitChargeLimit) : 0));
 
             SendMessageW(hStatusWnd, SB_SETTEXT, 2, (LPARAM)Text);