diff --git a/hal/src/fsfw_hal/linux/uio/UioMapper.cpp b/hal/src/fsfw_hal/linux/uio/UioMapper.cpp
index 546fb2cc..bc2d06eb 100644
--- a/hal/src/fsfw_hal/linux/uio/UioMapper.cpp
+++ b/hal/src/fsfw_hal/linux/uio/UioMapper.cpp
@@ -9,6 +9,10 @@
 
 #include "fsfw/serviceinterface.h"
 
+const char UioMapper::UIO_PATH_PREFIX[] = "/sys/class/uio/";
+const char UioMapper::MAP_SUBSTR[] = "/maps/map";
+const char UioMapper::SIZE_FILE_PATH[] = "/size";
+
 UioMapper::UioMapper(std::string uioFile, int mapNum) : uioFile(uioFile), mapNum(mapNum) {}
 
 UioMapper::~UioMapper() {}
diff --git a/hal/src/fsfw_hal/linux/uio/UioMapper.h b/hal/src/fsfw_hal/linux/uio/UioMapper.h
index d58a4c52..20c90b4d 100644
--- a/hal/src/fsfw_hal/linux/uio/UioMapper.h
+++ b/hal/src/fsfw_hal/linux/uio/UioMapper.h
@@ -39,9 +39,9 @@ class UioMapper {
   ReturnValue_t getMappedAdress(uint32_t** address, Permissions permissions);
 
  private:
-  static constexpr char UIO_PATH_PREFIX[] = "/sys/class/uio/";
-  static constexpr char MAP_SUBSTR[] = "/maps/map";
-  static constexpr char SIZE_FILE_PATH[] = "/size";
+  static const char UIO_PATH_PREFIX[];
+  static const char MAP_SUBSTR[];
+  static const char SIZE_FILE_PATH[];
   static constexpr int SIZE_HEX_STRING = 10;
 
   std::string uioFile;