diff --git a/crypto/sm2/miracl/mrmuldv.c b/crypto/sm2/miracl/mrmuldv.c
index 0194628f..1f11baab 100644
--- a/crypto/sm2/miracl/mrmuldv.c
+++ b/crypto/sm2/miracl/mrmuldv.c
@@ -12,7 +12,7 @@ int a,b,c,m,*rp;
         ASM ("movl   %eax,a");      
         ASM ("mull   b");          
         ASM ("addl   %eax,c");      
-        ASM ("adcl   %edx,0h");                 
+        ASM ("adcl   %edx,$0h");                 
         ASM ("divl   m");          
         ASM ("movl   %ebx,rp");     
         ASM ("movl   (%ebx),%edx");              
@@ -34,7 +34,7 @@ int a,b,c,*rp;
         ASM ("movl   %eax,a");      
         ASM ("mull   b");          
         ASM ("addl   %eax,c");      
-        ASM ("adcl   %edx,0h");                 
+        ASM ("adcl   %edx,$0h");                 
         ASM ("movl   %ebx,rp");     
         ASM ("movl   (%ebx),%eax");              
         ASM ("movl   %eax,%edx");
@@ -47,10 +47,10 @@ int a,b,*c,*rp;
         ASM ("mull   b");          
         ASM ("movl   %ebx,c");
         ASM ("addl   %eax,(%ebx)");
-        ASM ("adcl   %edx,0h");
+        ASM ("adcl   %edx,$0h");
         ASM ("movl   %esi,rp");
         ASM ("addl   %eax,(esi)");
-        ASM ("adcl   %edx,0h");
+        ASM ("adcl   %edx,$0h");
         ASM ("movl   (%esi),%eax");              
         ASM ("movl   (%ebx),%edx");
 }