diff --git a/include/freeDiameter/version.h.in b/include/freeDiameter/version.h.in
new file mode 100644
index 0000000..9b0fa61
--- /dev/null
+++ b/include/freeDiameter/version.h.in
@@ -0,0 +1,3 @@
+/* Following variable is expended at build time based on the result of "hg id" command */
+#cmakedefine FD_PROJECT_VERSION_HG
+#define FD_PROJECT_VERSION_HG_VAL "@FD_PROJECT_VERSION_HG@"