diff --git a/CMakeLists.txt b/CMakeLists.txt
index f3ba1e3..16be044 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,6 +4,7 @@ project(vmi-engine C)
 set(CMAKE_C_STANDARD 17)               # generation B uses no C23 feature
 set(CMAKE_C_STANDARD_REQUIRED ON)
 set(CMAKE_C_EXTENSIONS ON)             # deliberate: strnlen (POSIX) + void* arithmetic (GNU)
+set(CMAKE_POSITION_INDEPENDENT_CODE ON) # -fPIC on all objects: static lib stays linkable into a shared object
 
 option(VMIE_LTO "Enable LTO" OFF)      # build-only; shipped default is -O2, no LTO