diff --git a/Makefile b/Makefile
index 6aef1b5..7f12694 100644
--- a/Makefile
+++ b/Makefile
@@ -51,7 +51,7 @@ package: retropikzel/${LIBRARY}/LICENSE retropikzel/${LIBRARY}/VERSION retropikz
 ${PKG}: package
 
 install:
-	snow-chibi install --impls=${SCHEME} ${PKG}
+	snow-chibi install --impls=${SCHEME} --always-yes ${PKG}
 
 testfiles: ${PKG} ${TESTFILE}
 	rm -rf ${tmpdir}
diff --git a/makings.scm b/makings.scm
index 9802172..66916ed 100644
--- a/makings.scm
+++ b/makings.scm
@@ -10,7 +10,7 @@
           "git clone https://github.com/ashinn/chibi-scheme.git --depth=1 || true"
           "make -j8 -C chibi-scheme"
           "make -j8 -C chibi-scheme install"
-          "snow-chibi install retropikzel.compile-r7rs"))
+          "snow-chibi install --always-yes retropikzel.compile-r7rs"))
       (library-stage
         (lambda (scheme library-name)
           (list (string->symbol library-name)