diff --git a/calendar.spec b/calendar.spec
index 1b6f505..61605e1 100644
--- a/calendar.spec
+++ b/calendar.spec
@@ -19,6 +19,7 @@ Source2: export-calendar-source.sh
 Patch0:  %{name}-1.37-linux.patch
 
 BuildRequires: gcc
+BuildRequires: make
 Requires: cpp
 
 %description