diff --git a/cmake/ClazyStandaloneProcess.cmake b/cmake/ClazyStandaloneProcess.cmake
index 83914ba4614f3e0e52a062dd68a31d8963032ba8..4804623e48bcbb0e12bfc2c72cef8571492df492 100644
--- a/cmake/ClazyStandaloneProcess.cmake
+++ b/cmake/ClazyStandaloneProcess.cmake
@@ -6,6 +6,9 @@ if(PUGS_SOURCE_DIR AND CLAZY_STANDALONE)
     ${PUGS_SOURCE_DIR}/src/**.[hc]pp
     ${PUGS_SOURCE_DIR}/tests/**.[hc]pp)
 
+  # ignore ${PUGS_SOURCE_DIR}/packages/* directories
+  set(ENV{CLAZY_IGNORE_DIRS} "${PUGS_SOURCE_DIR}/packages/.*")
+
   # checks if VERBOSE was set
   set(ECHO_CMD_TO "NONE")
   if (DEFINED ENV{VERBOSE})