diff --git a/src/arch/loong64/include/bits/compiler.h b/src/arch/loong64/include/bits/compiler.h
index 8bdaf63fe..8be2f9c1e 100644
--- a/src/arch/loong64/include/bits/compiler.h
+++ b/src/arch/loong64/include/bits/compiler.h
@@ -9,7 +9,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 #ifndef ASSEMBLY
 
 /** Unprefixed constant operand modifier */
-#define ASM_NO_PREFIX "a"
+#define ASM_NO_PREFIX ""
 
 #define __asmcall
 #define __libgcc