diff --git a/xmlto.spec b/xmlto.spec
index b7d26f1..e0ceab6 100644
--- a/xmlto.spec
+++ b/xmlto.spec
@@ -15,6 +15,7 @@ BuildRoot: %{_tmppath}/%{name}-%{version}-buildroot
 BuildRequires: docbook-xsl >= 1.56.0
 BuildRequires: libxslt
 BuildRequires: util-linux, flex
+BuildRequires: strace
 
 # We rely heavily on the DocBook XSL stylesheets!
 Requires: docbook-xsl >= 1.56.0