diff -up usbguard-1.1.4/configure.ac.orig usbguard-1.1.4/configure.ac
--- usbguard-1.1.4/configure.ac.orig	2025-11-04 09:27:33.016736712 +0100
+++ usbguard-1.1.4/configure.ac	2025-11-04 09:27:54.843249396 +0100
@@ -400,16 +400,13 @@ if test "x$enable_catch" = xyes; then
     catch_summary="bundled; $catch_CFLAGS $catch_LIBS"
   else
     SAVE_CPPFLAGS=$CPPFLAGS
-    CPPFLAGS="-std=c++17 $CPPFLAGS -I/usr/include/catch2"
+    CPPFLAGS="-std=c++17 $CPPFLAGS -I/usr/include/catch"
     AC_LANG_PUSH([C++])
-    AC_CHECK_HEADER([catch_test_macros.hpp],
-    [catch_CFLAGS="-I/usr/include/catch2 -DHAVE_CATCH2_V3"
-    catch_LIBS="-lCatch2Main -lCatch2"],
-    [AC_CHECK_HEADER([catch.hpp],
-    [catch_CFLAGS="-I/usr/include/catch2"
+    AC_CHECK_HEADER([catch.hpp],
+    [catch_CFLAGS="-I/usr/include/catch"
     catch_LIBS=""],
-    [AC_MSG_FAILURE(Catch2 not found or not usable. Re-run with --with-bundled-catch to use the bundled library.)]
-    )])
+    [AC_MSG_FAILURE(Catch not found or not usable. Re-run with --with-bundled-catch to use the bundled library.)]
+    )
     AC_LANG_POP
     CPPFLAGS=$SAVE_CPPFLAGS
     catch_summary="system-wide; $catch_CFLAGS $catch_LIBS"
@@ -417,7 +414,7 @@ if test "x$enable_catch" = xyes; then
 else
   catch_CFLAGS=""
   catch_LIBS=""
-  catch_summary="disabled; not checking for Catch2"
+  catch_summary="disabled; not checking for Catch"
 fi
 AC_SUBST([catch_CFLAGS])
 AC_SUBST([catch_LIBS])