diff --git a/ares/configure.ac b/ares/configure.ac
index 4b93fb4b1a76bb289fc652aa38413f4b77a22e3d..c259e4e4f76db9a548fe83c0f5f6375acb68a8e9 100644
--- a/ares/configure.ac
+++ b/ares/configure.ac
@@ -160,7 +160,6 @@ esac
 
 CARES_CHECK_COMPILER_HALT_ON_ERROR
 CARES_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE
-CARES_CHECK_COMPILER_STRUCT_MEMBER_SIZE
 
 dnl **********************************************************************
 dnl Compilation based checks should not be done before this point.
diff --git a/configure.ac b/configure.ac
index f9a2260cd39feca7ebc51715614c0a9a64958d33..ada6b98986537bb753bd7bb80a19345ee173ce2a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -269,7 +269,6 @@ esac
 
 CURL_CHECK_COMPILER_HALT_ON_ERROR
 CURL_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE
-CURL_CHECK_COMPILER_STRUCT_MEMBER_SIZE
 
 dnl **********************************************************************
 dnl Compilation based checks should not be done before this point.