diff --git a/sk1/main.c b/sk1/main.c
index 1a11aa7..2265ca6 100644
--- a/sk1/main.c
+++ b/sk1/main.c
@@ -10,17 +10,17 @@ int main(int argc, char* argv[])
     }
     if (argc == 4)
     {
-        if (argv[2][0] == '-' && argv[2][1] == 'c' && argv[2][2] == 0)
+        if (argv[1][0] == '-' && argv[1][1] == 'c' && argv[1][2] == 0)
         {            
-            compress_1(argv[3], "tmpjkxqp.tmp");
-            compress_2("tmpjkxqp.tmp", argv[4]);
+            compress_1(argv[2], "tmpjkxqp.tmp");
+            compress_2("tmpjkxqp.tmp", argv[3]);
             remove("tmpjkxqp.tmp");
             return 0;
         }
-        if (argv[2][0] == '-' && argv[2][1] == 'd' && argv[2][2] == 0)
+        if (argv[1][0] == '-' && argv[1][1] == 'd' && argv[1][2] == 0)
         {            
-            decompress_2(argv[3], "tmpjkxqp.tmp");
-            decompress_1("tmpjkxqp.tmp", argv[4]);
+            decompress_2(argv[2], "tmpjkxqp.tmp");
+            decompress_1("tmpjkxqp.tmp", argv[3]);
             remove("tmpjkxqp.tmp");
             return 0;
         }