diff --git a/acinclude.m4 b/acinclude.m4
index bd25d294564..65c95c7b680 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -1061,6 +1061,7 @@ AC_DEFUN([PHP_CHECK_CC_OPTION],[
 	  AC_MSG_RESULT([no])
     fi
   fi
+  rm -rf conftest*
 ])
 
 AC_DEFUN([PHP_REGEX],[