diff --git a/dlls/jscript/lex.c b/dlls/jscript/lex.c
index ed73202..ba80154 100644
--- a/dlls/jscript/lex.c
+++ b/dlls/jscript/lex.c
@@ -387,7 +387,7 @@
             e = e*10 + *ctx->ptr++ - '0';
         e *= sign;
 
-        d = pow(d, e);
+        d *= pow(10, e);
     }
 
     *literal = parser_alloc(ctx, sizeof(literal_t));