diff --git a/lib/memory.h b/lib/memory.h
index c95602f48538..459ee283aa49 100644
--- a/lib/memory.h
+++ b/lib/memory.h
@@ -142,6 +142,16 @@ struct memgroup {
 	}                                                                      \
 	MACRO_REQUIRE_SEMICOLON() /* end */
 
+#ifdef __INTELLISENSE__
+/*
+ * Fix Visual Studio Code error: attribute "constructor" does not take
+ * arguments.
+ *
+ * Caused by the macro `DEFINE_MTYPE_ATTR`.
+ */
+#pragma diag_suppress 1094
+#endif /* __INTELISENSE__ */
+
 #define DEFINE_MTYPE(group, name, desc)                                        \
 	DEFINE_MTYPE_ATTR(group, name, , desc)                                 \
 	/* end */
diff --git a/lib/prefix.h b/lib/prefix.h
index c67656cfd134..4b054f0101b3 100644
--- a/lib/prefix.h
+++ b/lib/prefix.h
@@ -335,6 +335,17 @@ union prefixconstptr {
 	prefixtype(prefixconstptr, const struct prefix_rd,   rd)
 } TRANSPARENT_UNION;
 
+#ifdef __INTELLISENSE__
+/*
+ * Fix Visual Studio Code error: argument of type "struct prefix *" is
+ * incompatible with parameter of type "union prefixptr".
+ *
+ * This is caused by all functions having the transparent unions in the
+ * prototype: `prefixptr` and `prefixconstptr`.
+ */
+#pragma diag_suppress 167
+#endif /* __INTELISENSE__ */
+
 #ifndef INET_ADDRSTRLEN
 #define INET_ADDRSTRLEN 16
 #endif /* INET_ADDRSTRLEN */