diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b438269..2fb658b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -53,4 +53,5 @@ jobs:
           python infra/helper.py check_build python3-libraries \
             --engine libfuzzer \
             --sanitizer ${{ matrix.sanitizer }} \
-            --architecture x86_64
+            --architecture x86_64 \
+            -e ALLOWED_BROKEN_TARGETS_PERCENTAGE=0
diff --git a/fuzzer.cpp b/fuzzer.cpp
index 915d655..deb46e8 100644
--- a/fuzzer.cpp
+++ b/fuzzer.cpp
@@ -79,10 +79,11 @@ extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv) {
     }
 
     {
+        const std::string absoluteScriptDir = absoluteScriptPath.substr(0, absoluteScriptPath.find_last_of('/'));
         std::string setPYTHONPATH;
         setPYTHONPATH += "import sys";
         setPYTHONPATH += "\n";
-        setPYTHONPATH += "sys.path.append('" + absoluteScriptPath + "')\n";
+        setPYTHONPATH += "sys.path.append('" + absoluteScriptDir + "')\n";
         setPYTHONPATH += "\n";
         if ( PyRun_SimpleString(setPYTHONPATH.c_str()) != 0 ) {
             printf("Fatal: Cannot set PYTHONPATH\n");