diff --git a/sparc-dis.c b/sparc-dis.c
index 83a12ae99d..611e74f8ae 100644
--- a/sparc-dis.c
+++ b/sparc-dis.c
@@ -2778,7 +2778,7 @@ print_insn_sparc (bfd_vma memaddr, disassemble_info *info)
               /* Can't do simple format if source and dest are different.  */
               continue;
 
-          (*info->fprintf_func) (stream, opcode->name);
+          (*info->fprintf_func) (stream, "%s", opcode->name);
 
           {
             const char *s;