diff --git a/experimental/sample-configs/mpfr/mpfr.sample b/experimental/sample-configs/mpfr/mpfr.sample
index 0ffdfda..e95fed5 100644
--- a/experimental/sample-configs/mpfr/mpfr.sample
+++ b/experimental/sample-configs/mpfr/mpfr.sample
@@ -1 +1,2 @@
-./config --with-gmp=/usr/local
+./configure --with-gmp=/usr/local
+