diff --git a/recipes/telosearchlr/build.sh b/recipes/telosearchlr/build.sh
index 9831536fbaa0d..c01fdff0332a9 100644
--- a/recipes/telosearchlr/build.sh
+++ b/recipes/telosearchlr/build.sh
@@ -2,7 +2,9 @@
 mkdir -p ${PREFIX}/bin
 for f in *.py;
 do
-sed -i "1i #!/usr/bin/env python3" "$f"
+  if ! grep -q "^#!/usr/bin/env python3" "$f"; then
+    sed -i "1i #!/usr/bin/env python3" "$f"
+  fi
 done
 chmod +x *.py
 mv *.py $PREFIX/bin