diff --git a/contrib/guix/libexec/build.sh b/contrib/guix/libexec/build.sh
index 00cb4949636..2894a9a6955 100755
--- a/contrib/guix/libexec/build.sh
+++ b/contrib/guix/libexec/build.sh
@@ -448,4 +448,6 @@ mkdir -p "$DISTSRC"
     esac
 )  # $DISTSRC
 
-mv --no-target-directory "$OUTDIR" "$ACTUAL_OUTDIR"
+rm -rf "$ACTUAL_OUTDIR"
+mv --no-target-directory "$OUTDIR" "$ACTUAL_OUTDIR" \
+    || ( rm -rf "$ACTUAL_OUTDIR" && exit 1 )
diff --git a/contrib/guix/libexec/codesign.sh b/contrib/guix/libexec/codesign.sh
index 46b42a57127..1822da7ca4a 100755
--- a/contrib/guix/libexec/codesign.sh
+++ b/contrib/guix/libexec/codesign.sh
@@ -100,4 +100,6 @@ mkdir -p "$DISTSRC"
     esac
 )  # $DISTSRC
 
-mv --no-target-directory "$OUTDIR" "$ACTUAL_OUTDIR"
+rm -rf "$ACTUAL_OUTDIR"
+mv --no-target-directory "$OUTDIR" "$ACTUAL_OUTDIR" \
+    || ( rm -rf "$ACTUAL_OUTDIR" && exit 1 )