diff --git a/dll/cpl/sysdm/general.c b/dll/cpl/sysdm/general.c
index 870ec299c1b..85bc450cc2f 100644
--- a/dll/cpl/sysdm/general.c
+++ b/dll/cpl/sysdm/general.c
@@ -468,6 +468,7 @@ static VOID GetSystemInformation(HWND hwnd)
         {
             SetRegTextData(hwnd, hKey, _T("Identifier"), CurMachineLine);
             CurMachineLine++;
+            RegCloseKey(hKey);
         }
     }
     /*
@@ -489,6 +490,7 @@ static VOID GetSystemInformation(HWND hwnd)
 
         SetProcSpeed(hwnd, hKey, _T("~MHz"), CurMachineLine);
         CurMachineLine++;
+        RegCloseKey(hKey);
     }
 
     /* Get total physical RAM */