diff --git a/gap-semigroups.spec b/gap-semigroups.spec
index 8563b34..cfaa398 100644
--- a/gap-semigroups.spec
+++ b/gap-semigroups.spec
@@ -25,11 +25,13 @@ Group:          Productivity/Scientific/Math
 URL:            https://semigroups.github.io/Semigroups/
 #Git-Clone:     https://github.com/semigroups/Semigroups
 Source:         https://github.com/semigroups/Semigroups/releases/download/v%version/semigroups-%version.tar.gz
+BuildRequires:  automake
 BuildRequires:  c++_compiler
 BuildRequires:  fdupes
 BuildRequires:  gap-devel >= 4.12
 BuildRequires:  gap-rpm-devel
 BuildRequires:  gmp-devel
+BuildRequires:  libtool
 BuildRequires:  pkgconfig(libsemigroups)
 BuildRequires:  xz
 Requires:       gap-core >= 4.12