diff --git a/src/sklearndf/_sklearndf.py b/src/sklearndf/_sklearndf.py
index 25e80346..a7d08770 100644
--- a/src/sklearndf/_sklearndf.py
+++ b/src/sklearndf/_sklearndf.py
@@ -190,8 +190,8 @@ def fit_predict(
         :param y: a series or data frame with one or more outputs per observation
         :param fit_params: optional keyword parameters as required by specific \
             learner implementations
-        :return predictions per observation as a series, or as a data frame in case of \
-            multiple outputs
+        :return: predictions per observation as a series, or as a data frame in case \
+            of multiple outputs
         """
         pass