diff --git a/gnome-calculator.spec b/gnome-calculator.spec
index 6e3dcb4..eb75b0c 100644
--- a/gnome-calculator.spec
+++ b/gnome-calculator.spec
@@ -18,6 +18,7 @@ BuildRequires: gettext
 BuildRequires: intltool
 BuildRequires: itstool
 BuildRequires: mpfr-devel
+BuildRequires: libsoup-devel
 BuildRequires: /usr/bin/appstream-util
 
 Provides:  gcalctool = 6.6.2-3