diff --git a/builder/frameworks/ulp.py b/builder/frameworks/ulp.py
index 762de0ed4..7afa2efe5 100644
--- a/builder/frameworks/ulp.py
+++ b/builder/frameworks/ulp.py
@@ -118,7 +118,7 @@ def _generate_ulp_configuration_action(env, target, source):
             "-DSDKCONFIG_HEADER=" + os.path.join(BUILD_DIR, "config", "sdkconfig.h"),
             "-DPYTHON=" + env.subst("$PYTHONEXE"),
             "-DSDKCONFIG_CMAKE=" + os.path.join(BUILD_DIR, "config", "sdkconfig.cmake"),
-            "-DCMAKE_MODULE_PATH=" + os.path.join(fs.to_unix_path(FRAMEWORK_DIR), "components", "ulp", "cmake"),
+            "-DCMAKE_MODULE_PATH=" + fs.to_unix_path(os.path.join(FRAMEWORK_DIR, "components", "ulp", "cmake")),
             "-GNinja",
             "-B",
             ULP_BUILD_DIR,