diff --git a/esmvalcore/cmor/_fixes/native6/era5.py b/esmvalcore/cmor/_fixes/native6/era5.py
index aa4beae984..fbb5d8ccc4 100644
--- a/esmvalcore/cmor/_fixes/native6/era5.py
+++ b/esmvalcore/cmor/_fixes/native6/era5.py
@@ -175,6 +175,10 @@ def fix_metadata(self, cubes):
         return cubes
 
 
+class Prc(Pr):
+    """Fix for Prc."""
+
+
 class Prsn(Fix):
     """Fixes for prsn."""