diff --git a/dlls/imm32/imm.c b/dlls/imm32/imm.c
index 5991b8bd5bd..ccef19d960e 100644
--- a/dlls/imm32/imm.c
+++ b/dlls/imm32/imm.c
@@ -1397,7 +1397,7 @@ BOOL WINAPI ImmGetCompositionWindow(HIMC hIMC, LPCOMPOSITIONFORM lpCompForm)
         return FALSE;
 
     *lpCompForm = data->IMC.cfCompForm;
-    return 1;
+    return TRUE;
 }
 
 /***********************************************************************