diff --git a/src/ArborX_Config.hpp.in b/src/ArborX_Config.hpp.in
index ad69c135e..bcd5cbd81 100644
--- a/src/ArborX_Config.hpp.in
+++ b/src/ArborX_Config.hpp.in
@@ -15,10 +15,10 @@
 // ARBORX_VERSION % 100 is the patch level
 // ARBORX_VERSION / 100 % 100 is the minor version
 // ARBORX_VERSION / 10000 is the major version
-#define ARBORX_VERSION @ARBORX_VERSION@
-#define ARBORX_VERSION_MAJOR @ARBORX_VERSION_MAJOR@
-#define ARBORX_VERSION_MINOR @ARBORX_VERSION_MINOR@
-#define ARBORX_VERSION_PATCH @ARBORX_VERSION_PATCH@
+#cmakedefine ARBORX_VERSION @ARBORX_VERSION@
+#cmakedefine ARBORX_VERSION_MAJOR @ARBORX_VERSION_MAJOR@
+#cmakedefine ARBORX_VERSION_MINOR @ARBORX_VERSION_MINOR@
+#cmakedefine ARBORX_VERSION_PATCH @ARBORX_VERSION_PATCH@
 
 #cmakedefine ARBORX_ENABLE_ROCTHRUST
 #cmakedefine ARBORX_ENABLE_ONEDPL