diff --git a/Core/MIPS/MIPSAsmTables.h b/Core/MIPS/MIPSAsmTables.h
index 2e8c068c31..0f37ff6d9d 100644
--- a/Core/MIPS/MIPSAsmTables.h
+++ b/Core/MIPS/MIPSAsmTables.h
@@ -6,8 +6,8 @@ namespace MIPSAsm
 typedef struct {
 	char* name;
 	char* encoding;
-	int destencoding;
-	int flags;
+	unsigned int destencoding;
+	unsigned int flags;
 } tMipsOpcode;
 
 typedef struct {