diff --git a/programs/ssl/query_config.c b/programs/ssl/query_config.c
index baf513b..6f4e67f 100644
--- a/programs/ssl/query_config.c
+++ b/programs/ssl/query_config.c
@@ -1362,13 +1362,13 @@
     }
 #endif /* MBEDTLS_SSL_FREE_SERVER_CERTIFICATE */
 
-#if defined(MBEDTLS_IMMEDIATE_TRANSMISSION)
-    if( strcmp( "MBEDTLS_IMMEDIATE_TRANSMISSION", config ) == 0 )
+#if defined(MBEDTLS_SSL_IMMEDIATE_TRANSMISSION)
+    if( strcmp( "MBEDTLS_SSL_IMMEDIATE_TRANSMISSION", config ) == 0 )
     {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_IMMEDIATE_TRANSMISSION );
+        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_IMMEDIATE_TRANSMISSION );
         return( 0 );
     }
-#endif /* MBEDTLS_IMMEDIATE_TRANSMISSION */
+#endif /* MBEDTLS_SSL_IMMEDIATE_TRANSMISSION */
 
 #if defined(MBEDTLS_EARLY_KEY_COMPUTATION)
     if( strcmp( "MBEDTLS_EARLY_KEY_COMPUTATION", config ) == 0 )