diff --git a/gtsam/config.h.in b/gtsam/config.h.in
index fadb460b9..7dc704852 100644
--- a/gtsam/config.h.in
+++ b/gtsam/config.h.in
@@ -17,6 +17,13 @@
 
 #pragma once
 
+// Library version
+#define GTSAM_VERSION_MAJOR @GTSAM_VERSION_MAJOR@
+#define GTSAM_VERSION_MINOR @GTSAM_VERSION_MINOR@
+#define GTSAM_VERSION_PATCH @GTSAM_VERSION_PATCH@
+#define GTSAM_VERSION_STRING "@GTSAM_VERSION_MAJOR@.@GTSAM_VERSION_MINOR@.@GTSAM_VERSION_PATCH@"
+#define GTSAM_VERSION_NUMERIC (10000 * @GTSAM_VERSION_MAJOR@ + 100 * @GTSAM_VERSION_MINOR@ + @GTSAM_VERSION_PATCH@)
+
 // Paths to example datasets distributed with GTSAM
 #define GTSAM_SOURCE_TREE_DATASET_DIR "@CMAKE_SOURCE_DIR@/examples/Data"
 #define GTSAM_INSTALLED_DATASET_DIR "@GTSAM_TOOLBOX_INSTALL_PATH@/gtsam_examples/Data"