diff --git a/src/ebmc/transition_system.cpp b/src/ebmc/transition_system.cpp
index 899255db..e6fc9d95 100644
--- a/src/ebmc/transition_system.cpp
+++ b/src/ebmc/transition_system.cpp
@@ -94,10 +94,6 @@ int preprocess(const cmdlinet &cmdline, message_handlert &message_handler)
     return 1;
   }
 
-  // do -I
-  if(cmdline.isset('I'))
-    config.verilog.include_paths = cmdline.get_values('I');
-
   auto language = get_language_from_filename(filename);
 
   if(language == nullptr)
@@ -110,9 +106,12 @@ int preprocess(const cmdlinet &cmdline, message_handlert &message_handler)
   }
 
   optionst options;
+
+  // do -I
+  if(cmdline.isset('I'))
+    options.set_option("I", cmdline.get_values('I'));
+
   options.set_option("force-systemverilog", cmdline.isset("systemverilog"));
-  options.set_option("vl2smv-extensions", cmdline.isset("vl2smv-extensions"));
-  options.set_option("warn-implicit-nets", cmdline.isset("warn-implicit-nets"));
 
   // do -D
   if(cmdline.isset('D'))
@@ -162,6 +161,11 @@ static bool parse(
   languaget &language = *lf.language;
 
   optionst options;
+
+  // do -I
+  if(cmdline.isset('I'))
+    options.set_option("I", cmdline.get_values('I'));
+
   options.set_option("force-systemverilog", cmdline.isset("systemverilog"));
   options.set_option("vl2smv-extensions", cmdline.isset("vl2smv-extensions"));
   options.set_option("warn-implicit-nets", cmdline.isset("warn-implicit-nets"));
@@ -242,10 +246,6 @@ int get_transition_system(
 {
   messaget message(message_handler);
 
-  // do -I
-  if(cmdline.isset('I'))
-    config.verilog.include_paths = cmdline.get_values('I');
-
   if(cmdline.isset("preprocess"))
     return preprocess(cmdline, message_handler);
 
diff --git a/src/verilog/verilog_language.cpp b/src/verilog/verilog_language.cpp
index fc6b277c..cde151f2 100644
--- a/src/verilog/verilog_language.cpp
+++ b/src/verilog/verilog_language.cpp
@@ -36,6 +36,7 @@ void verilog_languaget::set_language_options(
 {
   force_systemverilog = options.get_bool_option("force-systemverilog");
   vl2smv_extensions = options.get_bool_option("vl2smv-extensions");
+  include_paths = options.get_list_option("I");
   initial_defines = options.get_list_option("defines");
   warn_implicit_nets = options.get_bool_option("warn-implicit-nets");
 }
@@ -107,7 +108,7 @@ bool verilog_languaget::preprocess(
   message_handlert &message_handler)
 {
   verilog_preprocessort preprocessor(
-    instream, outstream, message_handler, path, initial_defines);
+    instream, outstream, message_handler, path, include_paths, initial_defines);
 
   try { preprocessor.preprocessor(); }
   catch(int e) { return true; }
diff --git a/src/verilog/verilog_language.h b/src/verilog/verilog_language.h
index 0f566e91..a590d498 100644
--- a/src/verilog/verilog_language.h
+++ b/src/verilog/verilog_language.h
@@ -94,6 +94,7 @@ class verilog_languaget:public languaget
   bool force_systemverilog = false;
   bool vl2smv_extensions = false;
   bool warn_implicit_nets = false;
+  std::list<std::string> include_paths;
   std::list<std::string> initial_defines;
   verilog_parse_treet parse_tree;
 };
diff --git a/src/verilog/verilog_preprocessor.cpp b/src/verilog/verilog_preprocessor.cpp
index 11d9558a..2cd68e03 100644
--- a/src/verilog/verilog_preprocessor.cpp
+++ b/src/verilog/verilog_preprocessor.cpp
@@ -8,7 +8,6 @@ Author: Daniel Kroening, kroening@kroening.com
 
 #include "verilog_preprocessor.h"
 
-#include <util/config.h>
 #include <util/unicode.h>
 
 #include "expr2verilog.h"
@@ -136,7 +135,7 @@ std::filesystem::path verilog_preprocessort::find_include_file(
   }
 
   // Then try include paths in given order.
-  for(const auto &include_path : config.verilog.include_paths)
+  for(const auto &include_path : include_paths)
   {
     auto full_name = std::filesystem::path{include_path}.append(given_filename);
     if(std::filesystem::directory_entry(full_name).exists())
diff --git a/src/verilog/verilog_preprocessor.h b/src/verilog/verilog_preprocessor.h
index 53616c73..4e208854 100644
--- a/src/verilog/verilog_preprocessor.h
+++ b/src/verilog/verilog_preprocessor.h
@@ -22,8 +22,10 @@ class verilog_preprocessort:public preprocessort
     std::ostream &_out,
     message_handlert &_message_handler,
     const std::string &_filename,
+    const std::list<std::string> &_include_paths,
     const std::list<std::string> &_initial_defines)
     : preprocessort(_in, _out, _message_handler, _filename),
+      include_paths(_include_paths),
       initial_defines(_initial_defines)
   {
     condition=true;
@@ -33,6 +35,7 @@ class verilog_preprocessort:public preprocessort
 
 protected:
   // from the command line
+  const std::list<std::string> &include_paths;
   const std::list<std::string> &initial_defines;
 
   using tokent = verilog_preprocessor_token_sourcet::tokent;
diff --git a/src/vlindex/verilog_indexer.cpp b/src/vlindex/verilog_indexer.cpp
index fc5c45ef..9ac67b9c 100644
--- a/src/vlindex/verilog_indexer.cpp
+++ b/src/vlindex/verilog_indexer.cpp
@@ -92,7 +92,7 @@ std::string verilog_indexert::preprocess(const std::string &file_name)
 
   console_message_handlert message_handler;
   verilog_preprocessort preprocessor(
-    in_stream, preprocessed, message_handler, file_name, {});
+    in_stream, preprocessed, message_handler, file_name, {}, {});
 
   try
   {