diff --git a/infra/session_manager/CMakeLists.txt b/infra/session_manager/CMakeLists.txt
index 9b2a251..e295d1e 100644
--- a/infra/session_manager/CMakeLists.txt
+++ b/infra/session_manager/CMakeLists.txt
@@ -1,11 +1,11 @@
 add_library(session_manager
-    session_utils.cpp
-    session_pool.cpp
-    session_table.cpp
-    session_timer.cpp
-    session_filter.cpp
-    session_manager.cpp
-    session_transition.cpp
+    session_utils.c
+    session_pool.c
+    session_table.c
+    session_timer.c
+    session_filter.c
+    session_manager.c
+    session_transition.c
 )
 target_include_directories(session_manager PUBLIC ${CMAKE_CURRENT_LIST_DIR})
 target_include_directories(session_manager PUBLIC ${CMAKE_SOURCE_DIR}/infra/core)
diff --git a/infra/session_manager/session_filter.cpp b/infra/session_manager/session_filter.c
similarity index 100%
rename from infra/session_manager/session_filter.cpp
rename to infra/session_manager/session_filter.c
diff --git a/infra/session_manager/session_manager.cpp b/infra/session_manager/session_manager.c
similarity index 100%
rename from infra/session_manager/session_manager.cpp
rename to infra/session_manager/session_manager.c
diff --git a/infra/session_manager/session_pool.cpp b/infra/session_manager/session_pool.c
similarity index 100%
rename from infra/session_manager/session_pool.cpp
rename to infra/session_manager/session_pool.c
diff --git a/infra/session_manager/session_table.cpp b/infra/session_manager/session_table.c
similarity index 100%
rename from infra/session_manager/session_table.cpp
rename to infra/session_manager/session_table.c
diff --git a/infra/session_manager/session_timer.cpp b/infra/session_manager/session_timer.c
similarity index 100%
rename from infra/session_manager/session_timer.cpp
rename to infra/session_manager/session_timer.c
diff --git a/infra/session_manager/session_transition.cpp b/infra/session_manager/session_transition.c
similarity index 100%
rename from infra/session_manager/session_transition.cpp
rename to infra/session_manager/session_transition.c
diff --git a/infra/session_manager/session_utils.cpp b/infra/session_manager/session_utils.c
similarity index 100%
rename from infra/session_manager/session_utils.cpp
rename to infra/session_manager/session_utils.c