diff --git a/src/core/fs/ivfc.cpp b/src/core/fs/ivfc.cpp
index 78e50f29..ca8c5e26 100644
--- a/src/core/fs/ivfc.cpp
+++ b/src/core/fs/ivfc.cpp
@@ -58,7 +58,7 @@ namespace IVFC {
 
 		// According to 3DBrew, this is usually the case but not guaranteed
 		if (ivfcActualSize != ivfcDescriptorSize) {
-			printf("IVFC descriptor size mismatch: %lx != %lx\n", ivfcActualSize, ivfcDescriptorSize);
+			printf("IVFC descriptor size mismatch: %llx != %llx\n", ivfcActualSize, ivfcDescriptorSize);
 		}
 
 		if (magicIdentifier == 0x10000 && ivfcActualSize != 0x5C) {
@@ -73,4 +73,4 @@ namespace IVFC {
 
 		return ivfcActualSize;
 	}
-}  // namespace IVFC
\ No newline at end of file
+}  // namespace IVFC