diff --git a/reactos/subsystems/win32/win32k/ntuser/sysparams.c b/reactos/subsystems/win32/win32k/ntuser/sysparams.c
index eb8716a5219..083e3e79b0e 100644
--- a/reactos/subsystems/win32/win32k/ntuser/sysparams.c
+++ b/reactos/subsystems/win32/win32k/ntuser/sysparams.c
@@ -192,6 +192,7 @@ IntSystemParametersInfo(
    static BOOL KeyboardPref = FALSE;
    static BOOL ShowSounds = FALSE;
    static ACCESSTIMEOUT AccessTimeout = {sizeof(ACCESSTIMEOUT), 0, 0};
+   static DWORD CaretWidth = 1;
    static SERIALKEYS SerialKeys = {sizeof(SERIALKEYS), 0, 0, 0, 0, 0, 0};
 
    if (!bInitialized)
@@ -857,6 +858,19 @@ IntSystemParametersInfo(
             break;
          }
 
+      case SPI_GETCARETWIDTH:
+         {
+            *((DWORD*)pvParam) = CaretWidth;
+            break;
+         }
+
+      case SPI_SETCARETWIDTH:
+         {
+            CaretWidth = *((DWORD*)pvParam);
+            bChanged = TRUE;
+            break;
+         }
+
       default:
          {
              DPRINT1("FIXME: Unsupported SPI Action 0x%x (uiParam: 0x%x, pvParam: 0x%x, fWinIni: 0x%x)\n",