diff --git a/cmake/templates/config.h.in b/cmake/templates/config.h.in
index 2eea397..311dacc 100644
--- a/cmake/templates/config.h.in
+++ b/cmake/templates/config.h.in
@@ -9,6 +9,7 @@
 #define PROJECT_VARNAME_UPPER "@META_PROJECT_VARNAME_UPPER@"
 #define PROJECT_LICENSE "@META_PROJECT_LICENSE@"
 #define PROJECT_CONFIG_NAME "@META_CONFIG_NAME@"
+#define PROJECT_CONFIG_SUFFIX "@META_CONFIG_SUFFIX@"
 #define PROJECT_CONFIG_TARGET_SUFFIX "@TARGET_SUFFIX@"
 #define APP_NAME "@META_APP_NAME@"
 #define APP_VERSION "@META_APP_VERSION@"