diff --git a/src/script_opt/ZAM/OPs/rel-exprs.op b/src/script_opt/ZAM/OPs/rel-exprs.op
index 92c35b7ce6..f4ed1a023f 100644
--- a/src/script_opt/ZAM/OPs/rel-exprs.op
+++ b/src/script_opt/ZAM/OPs/rel-exprs.op
@@ -29,7 +29,7 @@ eval-type P	strcmp($1->Get()->PatternText(), $2->Get()->PatternText()) == 0
 eval-mixed P S	$1->MatchExactly($2->AsString())
 
 rel-expr-op NE
-op-type I U D S T A N F
+op-type I U D S T A N F P
 vector
 eval $1 != $2
 eval-type S	Bstr_cmp($1->AsString(), $2->AsString()) != 0
@@ -37,6 +37,7 @@ eval-type T	! $1->EqualTo(*$2)
 eval-type A	$1->AsAddr() != $2->AsAddr()
 eval-type N	$1->AsSubNet() != $2->AsSubNet()
 eval-type F	$1->GetName() != $2->GetName()
+eval-type P	strcmp($1->Get()->PatternText(), $2->Get()->PatternText()) != 0
 eval-mixed P S	! $1->MatchExactly($2->AsString())
 
 # Note, canonicalization means that GE and GT shouldn't occur
diff --git a/testing/btest/Baseline/opt.validate-ZAM/output b/testing/btest/Baseline/opt.validate-ZAM/output
index 2f91ef7f21..e99ede3a6b 100644
--- a/testing/btest/Baseline/opt.validate-ZAM/output
+++ b/testing/btest/Baseline/opt.validate-ZAM/output
@@ -1,2 +1,2 @@
 ### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
-1248 valid, 1890 tested, 437 skipped
+1255 valid, 1908 tested, 440 skipped