diff --git a/iseq.c b/iseq.c
index 170fe44465..706629d52b 100644
--- a/iseq.c
+++ b/iseq.c
@@ -1533,7 +1533,7 @@ iseqw_s_compile_file_prism(int argc, VALUE *argv, VALUE self)
 }
 
 rb_iseq_t *
-rb_iseq_new_main_prism(pm_string_t *input, pm_options_t *options, VALUE path, VALUE optimize)
+rb_iseq_new_main_prism(pm_string_t *input, pm_options_t *options, VALUE script_name, VALUE path, VALUE optimize)
 {
     pm_parser_t parser;
     pm_parser_init(&parser, pm_string_source(input), pm_string_length(input), options);
@@ -1543,7 +1543,7 @@ rb_iseq_new_main_prism(pm_string_t *input, pm_options_t *options, VALUE path, VA
     pm_options_line_set(options, start_line);
 
     rb_iseq_t *iseq = iseq_alloc();
-    iseqw_s_compile_prism_compile(&parser, optimize, iseq, path, path, start_line);
+    iseqw_s_compile_prism_compile(&parser, optimize, iseq, script_name, path, start_line);
 
     pm_parser_free(&parser);
     return iseq;
diff --git a/iseq.h b/iseq.h
index e5774d098c..94e723ea7d 100644
--- a/iseq.h
+++ b/iseq.h
@@ -172,7 +172,7 @@ void rb_iseq_init_trace(rb_iseq_t *iseq);
 int rb_iseq_add_local_tracepoint_recursively(const rb_iseq_t *iseq, rb_event_flag_t turnon_events, VALUE tpval, unsigned int target_line, bool target_bmethod);
 int rb_iseq_remove_local_tracepoint_recursively(const rb_iseq_t *iseq, VALUE tpval);
 const rb_iseq_t *rb_iseq_load_iseq(VALUE fname);
-rb_iseq_t * rb_iseq_new_main_prism(pm_string_t *input, pm_options_t *options, VALUE path, VALUE optimize);
+rb_iseq_t * rb_iseq_new_main_prism(pm_string_t *input, pm_options_t *options, VALUE script_name, VALUE path, VALUE optimize);
 
 #if VM_INSN_INFO_TABLE_IMPL == 2
 unsigned int *rb_iseq_insns_info_decode_positions(const struct rb_iseq_constant_body *body);
diff --git a/load.c b/load.c
index a35042e5f5..3b9b940ad9 100644
--- a/load.c
+++ b/load.c
@@ -747,7 +747,7 @@ load_iseq_eval(rb_execution_context_t *ec, VALUE fname)
             pm_parser_t parser;
             pm_parser_init(&parser, pm_string_source(&input), pm_string_length(&input), &options);
 
-            iseq = rb_iseq_new_main_prism(&input, &options, fname, Qnil);
+            iseq = rb_iseq_new_main_prism(&input, &options, fname, fname, Qnil);
 
             pm_string_free(&input);
             pm_options_free(&options);
diff --git a/ruby.c b/ruby.c
index bccc6504a0..cf82d3e0a1 100644
--- a/ruby.c
+++ b/ruby.c
@@ -2428,7 +2428,7 @@ process_options(int argc, char **argv, ruby_cmdline_options_t *opt)
             }
 
             VALUE optimize = dump & DUMP_BIT(insns_without_opt) ? Qfalse : Qnil;
-            iseq = rb_iseq_new_main_prism(&input, &options, path, optimize);
+            iseq = rb_iseq_new_main_prism(&input, &options, opt->script_name, path, optimize);
             ruby_opt_init(opt);
 
             pm_string_free(&input);