diff --git a/dlls/msi/tests/install.c b/dlls/msi/tests/install.c
index 609fafa9adb..6ed3a4bbf1b 100644
--- a/dlls/msi/tests/install.c
+++ b/dlls/msi/tests/install.c
@@ -694,7 +694,7 @@ static void test_packagecoltypes(void)
 {
     MSIHANDLE hdb, view, rec;
     char path[MAX_PATH];
-    LPSTR query;
+    LPCSTR query;
     UINT r, count;
 
     CoInitialize(NULL);