diff --git a/source/dub/internal/vibecompat/data/json.d b/source/dub/internal/vibecompat/data/json.d
index 1699f40..a2705a3 100644
--- a/source/dub/internal/vibecompat/data/json.d
+++ b/source/dub/internal/vibecompat/data/json.d
@@ -1915,7 +1915,7 @@
 						char[13] buf;
 						int len;
 						dchar codepoint = decode(s, pos);
-						import std.c.stdio : sprintf;
+						import core.stdc.stdio : sprintf;
 						/* codepoint is in BMP */
 						if(codepoint < 0x10000)
 						{