diff --git a/testing/btest/opt/regress-any-leak.zeek b/testing/btest/opt/regress-any-leak.zeek
index 118356aa07..d049672caf 100644
--- a/testing/btest/opt/regress-any-leak.zeek
+++ b/testing/btest/opt/regress-any-leak.zeek
@@ -1,4 +1,5 @@
 # @TEST-DOC: Regression test for leak when mixing "any" types (affected both ZAM and non-ZAM)
+# @TEST-REQUIRES: test "${ZEEK_USE_CPP}" != "1"
 # @TEST-EXEC: zeek -b -O ZAM %INPUT >output
 # @TEST-EXEC: btest-diff output
 
diff --git a/testing/btest/opt/regress-any.zeek b/testing/btest/opt/regress-any.zeek
index 98c4116392..0514cbac1d 100644
--- a/testing/btest/opt/regress-any.zeek
+++ b/testing/btest/opt/regress-any.zeek
@@ -1,4 +1,5 @@
 # @TEST-DOC: Regression test for reassigning an "any" field
+# @TEST-REQUIRES: test "${ZEEK_USE_CPP}" != "1"
 # @TEST-EXEC: zeek -b -O ZAM %INPUT >output
 # @TEST-EXEC: btest-diff output
 
diff --git a/testing/btest/opt/regress-vector-mismatch.zeek b/testing/btest/opt/regress-vector-mismatch.zeek
index e07411750d..48a15f96ac 100644
--- a/testing/btest/opt/regress-vector-mismatch.zeek
+++ b/testing/btest/opt/regress-vector-mismatch.zeek
@@ -1,4 +1,5 @@
 # @TEST-DOC: Regression test for coercing vectors-of-any
+# @TEST-REQUIRES: test "${ZEEK_USE_CPP}" != "1"
 # @TEST-EXEC: zeek -b -O ZAM %INPUT >output
 # @TEST-EXEC: btest-diff output