diff --git a/spcd/util.py b/spcd/util.py
index a73b251..70bfa0c 100644
--- a/spcd/util.py
+++ b/spcd/util.py
@@ -45,6 +45,7 @@ def split() -> None:
 
 
 def step(text: str) -> None:
+    """Increment the step number of the current build process."""
     env.SPCD_STEP += 1
     log.info(env.SPCD_DOWN)
     log.info(f"{env.SPCD_VERT} {env.SPCD_STEP} {text}")