diff --git a/src/p_com.cpp b/src/p_com.cpp
index 64f7f064..6cc1a81e 100644
--- a/src/p_com.cpp
+++ b/src/p_com.cpp
@@ -109,7 +109,7 @@ void PackCom::patchLoader(OutputFile *fo,
     if (upper_end + stacksize > 0xfffe)
         stacksize = 0x56;
     if (upper_end + stacksize > 0xfffe)
-        throwNotCompressible();
+        throwCantPack("file is too big for dos/com");
 
     if (filter_id)
     {