diff --git a/src/ifcfuzz/README.md b/src/ifcfuzz/README.md
index 3ed11e3df7..9b107787d3 100644
--- a/src/ifcfuzz/README.md
+++ b/src/ifcfuzz/README.md
@@ -27,7 +27,7 @@ cmake ../cmake \
   -DCMAKE_C_FLAGS="-fsanitize=address,undefined -fno-sanitize-recover=all -g -O1 -fno-omit-frame-pointer" \
   -DBUILD_FUZZERS=ON -DMINIMAL_BUILD=ON \
   -DBUILD_IFCGEOM=OFF -DBUILD_CONVERT=OFF -DWITH_OPENCASCADE=OFF \
-  -DBUILD_ONLY_COMMON_SCHEMAS=ON
+  -DSCHEMA_VERSIONS="2x3;4;4x3_add2"
 cmake --build . --target ifcparse_fuzzer -- -j$(nproc)
 ```
 
diff --git a/src/ifcfuzz/ifcparse_fuzzer.cpp b/src/ifcfuzz/ifcparse_fuzzer.cpp
index 01b175234a..1ceb889e00 100644
--- a/src/ifcfuzz/ifcparse_fuzzer.cpp
+++ b/src/ifcfuzz/ifcparse_fuzzer.cpp
@@ -48,7 +48,7 @@ bool is_regular_file(const char* path) {
 extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv) {
     for (int i = 1; i < *argc; ++i) {
         if (is_regular_file((*argv)[i])) {
-            logger::root().set_output(&std::cerr, &std::cerr);
+            ifcopenshell::logger::root().set_output(&std::cerr, &std::cerr);
             break;
         }
     }