diff --git a/openmpi.spec b/openmpi.spec
index c167f76..f3972a5 100644
--- a/openmpi.spec
+++ b/openmpi.spec
@@ -95,6 +95,7 @@ BuildRequires:		automake
 BuildRequires:		autoconf
 BuildRequires:		libtool
 BuildRequires:		gettext
+BuildRequires:		perl-interpreter
 
 Provides:		mpi
 %if 0%{?rhel}
@@ -178,7 +179,7 @@ OpenMPI support for Python 3.
 %prep
 %autosetup -p1 -n openmpi-%{version}
 
-autoreconf -fiv
+./autogen.pl --force
 
 # Update config.* scripts to get RISC-V (riscv64) support
 for f in $(find . -name config.guess); do