diff --git a/sim/compile_rtl.py b/sim/compile_rtl.py
index c4c23b1..cb41ef9 100644
--- a/sim/compile_rtl.py
+++ b/sim/compile_rtl.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-
 import sys
 import filecmp
 import subprocess
diff --git a/sim/compliance_test/compliance_test.py b/sim/compliance_test/compliance_test.py
index e9ebd62..01c679e 100644
--- a/sim/compliance_test/compliance_test.py
+++ b/sim/compliance_test/compliance_test.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-
 import sys
 import filecmp
 import subprocess
diff --git a/sim/sim_default_nowave.py b/sim/sim_default_nowave.py
index 00481a7..b0bc422 100644
--- a/sim/sim_default_nowave.py
+++ b/sim/sim_default_nowave.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-
 import sys
 import filecmp
 import subprocess
diff --git a/sim/sim_new_nowave.py b/sim/sim_new_nowave.py
index 569e7d4..83885cd 100644
--- a/sim/sim_new_nowave.py
+++ b/sim/sim_new_nowave.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-
 import sys
 import filecmp
 import subprocess
diff --git a/sim/test_all_isa.py b/sim/test_all_isa.py
index 7bb80b8..2f811f6 100644
--- a/sim/test_all_isa.py
+++ b/sim/test_all_isa.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-
 import os
 import subprocess
 import sys