diff --git a/ndiff/scripts/ndiff b/ndiff/scripts/ndiff
index 8517c0757..eb87d2590 100755
--- a/ndiff/scripts/ndiff
+++ b/ndiff/scripts/ndiff
@@ -63,7 +63,7 @@ def is_secure_dir(path, num_symlinks=0):
 # by other users. The following line is replaced by the installation program.
 INSTALL_LIB = None
 if INSTALL_LIB is not None and is_secure_dir(INSTALL_LIB):
-    sys.path.append(INSTALL_LIB)
+    sys.path.append(INSTALL_LIB) # lgtm[py/unreachable-statement]
 
 try:
     import ndiff
diff --git a/zenmap/zenmap b/zenmap/zenmap
index 363b8dcf2..f1abadbc9 100755
--- a/zenmap/zenmap
+++ b/zenmap/zenmap
@@ -175,7 +175,7 @@ def is_secure_dir(path, num_symlinks=0):
 # by other users. The following line is replaced by the installation program.
 INSTALL_LIB = None
 if INSTALL_LIB is not None and is_secure_dir(INSTALL_LIB):
-    sys.path.append(INSTALL_LIB)
+    sys.path.append(INSTALL_LIB) # lgtm[py/unreachable-statement]
 
 try:
     import zenmapGUI.App