diff --git a/tldr/linux/obabel b/tldr/linux/obabel
index 979d1cb8..852f93c6 100644
--- a/tldr/linux/obabel
+++ b/tldr/linux/obabel
@@ -14,7 +14,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Convert a SMILES string to a 500x500 picture:
 
-`obabel -:"{{SMILES}} -O {{path/to/output_file.png}} -xp 500`
+`obabel -:"{{SMILES}}" -O {{path/to/output_file.png}} -xp 500`
 
 - Convert a file of SMILES string to separate 3D .mol files: