diff --git a/SPECS/sc-im.spec b/SPECS/sc-im.spec
index 0786fcc..e76cd5c 100644
--- a/SPECS/sc-im.spec
+++ b/SPECS/sc-im.spec
@@ -6,6 +6,10 @@ License:        MIT
 URL:            https://github.com/andmarti1424/sc-im
 Source0:        https://github.com/andmarti1424/sc-im/archive/v%{version}.tar.gz
 #BuildRequires:  gnuplot
+BuildRequires:  libxls
+BuildRequires:	libxlsxwriter-devel
+Requires:       libxls
+Requires:	libxlsxwriter
 
 %description
 SC-IM is a spreadsheet program that is based on SC.
@@ -34,6 +38,8 @@ SC-IM is a spreadsheet program that is based on SC.
 
 
 %build
+export CFLAGS="%{optflags} -DXLSX -DXLSX_EXPORT"
+export LDLIBS="-lxlsreader -lxlsxwriter"
 make %{?_smp_mflags} -C src