diff --git a/earthdiagnostics/ocean/interpolatecdo.py b/earthdiagnostics/ocean/interpolatecdo.py
index dcf8dd53991126666d621939ab0522136cd596bf..c12632f26a0c1f37d0e3f09fafe6c7946a1e513f 100644
--- a/earthdiagnostics/ocean/interpolatecdo.py
+++ b/earthdiagnostics/ocean/interpolatecdo.py
@@ -226,7 +226,7 @@ class InterpolateCDO(Diagnostic):
         elif method == InterpolateCDO.BICUBIC:
             Utils.cdo().genbic(target_grid, input=sample_file, output=weights)
         elif method == InterpolateCDO.CONSERVATIVE:
-            Utils.cdo().genycon(target_grid, input=sample_file, output=weights)
+            Utils.cdo().gencon(target_grid, input=sample_file, output=weights)
         elif method == InterpolateCDO.CONSERVATIVE2:
             Utils.cdo().gencon2(target_grid, input=sample_file, output=weights)