diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4182d5e..e3ef795 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -261,15 +261,17 @@ if(BUILD_TESTING)
 
   # scripted tests. Written manually to fill in anything libfuzzer couldn't
   # find.
-  find_package(Python3 REQUIRED COMPONENTS Interpreter)
-  execute_process(
-    COMMAND ${Python3_EXECUTABLE} ${CMAKE_SOURCE_DIR}/test_conflict_set.py list
-    OUTPUT_VARIABLE SCRIPT_TESTS)
-  foreach(TEST ${SCRIPT_TESTS})
-    add_test(NAME script_test_${TEST}
-             COMMAND ${Python3_EXECUTABLE}
-                     ${CMAKE_SOURCE_DIR}/test_conflict_set.py test ${TEST})
-  endforeach()
+  if(NOT CMAKE_CROSSCOMPILING)
+    find_package(Python3 REQUIRED COMPONENTS Interpreter)
+    execute_process(
+      COMMAND ${Python3_EXECUTABLE} ${CMAKE_SOURCE_DIR}/test_conflict_set.py
+              list OUTPUT_VARIABLE SCRIPT_TESTS)
+    foreach(TEST ${SCRIPT_TESTS})
+      add_test(NAME script_test_${TEST}
+               COMMAND ${Python3_EXECUTABLE}
+                       ${CMAKE_SOURCE_DIR}/test_conflict_set.py test ${TEST})
+    endforeach()
+  endif()
 
   find_program(VALGRIND_EXE valgrind)
   if(VALGRIND_EXE AND NOT CMAKE_CROSSCOMPILING)