diff --git a/appveyor.yml b/appveyor.yml
index fe33f51..8bb7d09 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -16,6 +16,7 @@ environment:
   - R_VERSION: 4.2.3
     R_ARCH: x64
     BIOC_USE_DEVEL: FALSE
+    USE_RTOOLS: TRUE
     PKGTYPE: binary
 
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