diff --git a/src/tests/testinput/hofx_profiles_writer.yaml b/src/tests/testinput/hofx_profiles_writer.yaml
index ac117e8..054dbf8 100644
--- a/src/tests/testinput/hofx_profiles_writer.yaml
+++ b/src/tests/testinput/hofx_profiles_writer.yaml
@@ -41,7 +41,7 @@ observations:
           feedback suffix: Hx
           ioda group: HofX
       where:
-      - is_true: null
+      - value: is_true
         variable:
           name: DiagnosticFlags/ObsToWrite/waterPotentialTemperature
 
diff --git a/src/tests/testinput/hofx_sic_writer.yaml b/src/tests/testinput/hofx_sic_writer.yaml
index e5d87a8..023c7eb 100644
--- a/src/tests/testinput/hofx_sic_writer.yaml
+++ b/src/tests/testinput/hofx_sic_writer.yaml
@@ -21,7 +21,7 @@ observations:
       where:
       - variable:
           name: DiagnosticFlags/ObsToWrite/seaIceFraction
-        is_true:
+        value: is_true
       variables:
       - name: seaIceFraction
         nemo name: ICECONC