diff --git a/pcsx2/IopBios.cpp b/pcsx2/IopBios.cpp
index a30c113234..759470d588 100644
--- a/pcsx2/IopBios.cpp
+++ b/pcsx2/IopBios.cpp
@@ -248,7 +248,7 @@ namespace ioman {
 			else
 			{
 				v0 = allocfd(file);
-				if (v0 < 0)
+				if ((s32)v0 < 0)
 					file->close();
 			}