diff --git a/debuginfo-tests/CMakeLists.txt b/debuginfo-tests/CMakeLists.txt
--- a/debuginfo-tests/CMakeLists.txt
+++ b/debuginfo-tests/CMakeLists.txt
@@ -2,6 +2,8 @@
 # various types of debug info, and then run those programs under a debugger
 # such as GDB or LLDB to verify the results.
 
+find_package(Python3 COMPONENTS Interpreter)
+
 add_llvm_executable(check-gdb-llvm-support
         llvm-prettyprinters/gdb/llvm-support.cpp
 )