diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9bc754a..6512d07 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,8 +2,9 @@ cmake_minimum_required(VERSION 3.15)
 
 set(FLATUSB_TARGET flatUSB)
 
-if (NOT FLATUSB_TARGET_TAG STREQUAL "")
-    set(${FLATUSB_TARGET} "${FLATUSB_TARGET}_${FLATUSB_TARGET_TAG}")
+if (FLATUSB_TARGET_TAG)
+    set(FLATUSB_TARGET "${FLATUSB_TARGET}_${FLATUSB_TARGET_TAG}")
+    message("Custom flatUSB target: ${FLATUSB_TARGET}")
 endif()
 
 set(FLATUSB_CLASSES_SRC "")