diff --git a/src/ifcwrap/CMakeLists.txt b/src/ifcwrap/CMakeLists.txt
index 3ab27a4e2e..befd8c9ba0 100644
--- a/src/ifcwrap/CMakeLists.txt
+++ b/src/ifcwrap/CMakeLists.txt
@@ -21,7 +21,11 @@ cmake_policy(SET CMP0177 NEW)
 
 FIND_PACKAGE(SWIG)
 IF(NOT SWIG_FOUND)
-	MESSAGE(FATAL_ERROR "BUILD_IFCPYTHON enabled, but unable to find SWIG. Disable BUILD_IFCPYTHON or fix SWIG paths to proceed.")
+	MESSAGE(
+        FATAL_ERROR
+        "BUILD_IFCPYTHON enabled, but unable to find SWIG. Disable BUILD_IFCPYTHON or fix SWIG paths to proceed. "
+        "Likely SWIG_EXECUTABLE is missing (current value - '${SWIG_EXECUTABLE}')."
+    )
 ENDIF()
 include(GNUInstallDirs)
 INCLUDE(${SWIG_USE_FILE})