diff --git a/src/libsystemd/sd-json/sd-json.c b/src/libsystemd/sd-json/sd-json.c
index f263ab6740..c0067cb40b 100644
--- a/src/libsystemd/sd-json/sd-json.c
+++ b/src/libsystemd/sd-json/sd-json.c
@@ -56,7 +56,7 @@ typedef struct JsonSource {
         char name[];
 } JsonSource;
 
-/* On x86-64 this whole structure should have a size of 6 * 64 bit = 48 bytes */
+/* On x86-64 this whole structure should have a size of 5 * 64 bit = 40 bytes */
 struct sd_json_variant {
         union {
                 /* We either maintain a reference counter for this variant itself, or we are embedded into an
@@ -132,7 +132,7 @@ struct sd_json_variant {
 
 /* Let's make sure this structure isn't increased in size accidentally. This check is only for our most relevant arch
  * (x86-64). */
-#if defined(__x86_64__) && __SIZEOF_POINTER__ == 8
+#if defined(__x86_64__) && __SIZEOF_POINTER__ == 8 && !defined(__EDG__)
 assert_cc(sizeof(sd_json_variant) == 40U);
 assert_cc(INLINE_STRING_MAX == 7U);
 #endif