diff --git a/godot_compile/godot_compile_utils.py b/godot_compile/godot_compile_utils.py
index 5fabc3e..0f2288d 100644
--- a/godot_compile/godot_compile_utils.py
+++ b/godot_compile/godot_compile_utils.py
@@ -61,7 +61,7 @@ def install_miniconda() -> str:
     try:
         output = subprocess.check_output(command, stderr=subprocess.PIPE, text=True)
     except Exception as err:
-        raise Exception("could not install miniconda using command %s", " ".join(command)) from err
+        raise Exception("could not install miniconda using command %s" % " ".join(command)) from err
     return output