diff --git a/res2df/common.py b/res2df/common.py
index a59e2590a..c9aef1e18 100644
--- a/res2df/common.py
+++ b/res2df/common.py
@@ -1,4 +1,4 @@
-"""Common functions for res2df modules"""
+"""Common functions for ecl2df modules"""
 
 import argparse
 import datetime
@@ -26,10 +26,10 @@
     # to be included in DeckItem objects.
     from opm.io.deck import DeckKeyword  # noqa
 except ImportError:
-    # Allow parts of res2df to work without OPM:
+    # Allow parts of ecl2df to work without OPM:
     pass
 
-from res2df import __version__
+from ecl2df import __version__
 
 from .constants import MAGIC_STDOUT
 
@@ -450,7 +450,7 @@ def handle_wanted_keywords(
         not_supported: Set[str] = set(wanted) - set(supported)
         if not_supported:
             logger.warning(
-                "Requested keyword(s) not supported by res2df.%s: %s",
+                "Requested keyword(s) not supported by ecl2df.%s: %s",
                 modulename,
                 str(not_supported),
             )
@@ -481,7 +481,7 @@ def fill_reverse_parser(
         defaultoutputfile: Default output filename
     """
     parser.add_argument(
-        "csvfile", help="Name of CSV file with " + modulename + " data on res2df format"
+        "csvfile", help="Name of CSV file with " + modulename + " data on ecl2df format"
     )
     parser.add_argument(
         "-o",
@@ -516,7 +516,7 @@ def df2ecl(
     consecutive: Optional[str] = None,
     filename: Optional[str] = None,
 ) -> str:
-    """Generate Eclipse include strings from dataframes in res2df format.
+    """Generate Eclipse include strings from dataframes in ecl2df format.
 
     This function hands over the actual text generation pr. keyword
     to functions named df2ecl_<keywordname> in the calling module.
@@ -525,7 +525,7 @@ def df2ecl(
     for the actual string construction.
 
     Args:
-        dataframe: Dataframe with Eclipse data on res2df format.
+        dataframe: Dataframe with Eclipse data on ecl2df format.
         keywords: List of keywords to include. Will be reduced
             to the set of keywords available in dataframe and to those supported
         comments: Dictionary indexed by keyword with comments to be
@@ -596,7 +596,7 @@ def df2ecl(
 
         return ""
     string = ""
-    res2df_header = (
+    ecl2df_header = (
         "Output file printed by "
         + calling_module.__name__  # type: ignore
         + " "
@@ -605,7 +605,7 @@ def df2ecl(
         + " at "
         + str(datetime.datetime.now())
     )
-    string += comment_formatter(res2df_header)
+    string += comment_formatter(ecl2df_header)
     string += "\n"
     if "master" in comments:
         string += comment_formatter(comments["master"])