diff --git a/scripts/conversion_tools/unit_conversion.py b/scripts/conversion_tools/unit_conversion.py
index 7fbf41a2..25a44cab 100755
--- a/scripts/conversion_tools/unit_conversion.py
+++ b/scripts/conversion_tools/unit_conversion.py
@@ -196,3 +196,11 @@ def V_A__to__W():
 def W__to__V_A():
     """Equivalent units"""
     return '{var}'
+
+def N_m_minus_2__to__Pa():
+    """Equivalent units"""
+    return '{var}'
+
+def Pa__to__N_m_minus_2():
+    """Equivalent units"""
+    return '{var}'
diff --git a/scripts/var_props.py b/scripts/var_props.py
index 52800ba4..a53e8b68 100755
--- a/scripts/var_props.py
+++ b/scripts/var_props.py
@@ -1201,6 +1201,8 @@ def _get_unit_convstrs(self, var1_units, var2_units):
         ('{var}+273.15{kind}', '{var}-273.15{kind}')
         >>> _DOCTEST_VCOMPAT._get_unit_convstrs('V A', 'W')
         (None, None)
+        >>> _DOCTEST_VCOMPAT._get_unit_convstrs('N m-2', 'Pa')
+        (None, None)
         >>> _DOCTEST_VCOMPAT._get_unit_convstrs('m2 s-2', 'J kg-1')
         (None, None)
         >>> _DOCTEST_VCOMPAT._get_unit_convstrs('m+2 s-2', 'J kg-1')