diff --git a/libqti-perfd-client/Android.bp b/libqti-perfd-client/Android.bp
index 77f9332..010d072 100644
--- a/libqti-perfd-client/Android.bp
+++ b/libqti-perfd-client/Android.bp
@@ -3,7 +3,7 @@ cc_library_shared {
     proprietary: true,
     defaults: ["hidl_defaults"],
     srcs: [
-        "client.cpp",
+        "client.c",
     ],
     cflags: [
         "-Werror",
diff --git a/libqti-perfd-client/client.cpp b/libqti-perfd-client/client.c
similarity index 58%
rename from libqti-perfd-client/client.cpp
rename to libqti-perfd-client/client.c
index 8c0cee2..42b3cdc 100644
--- a/libqti-perfd-client/client.cpp
+++ b/libqti-perfd-client/client.c
@@ -3,9 +3,9 @@
 #include <stdint.h>
 #include <log/log.h>
 
-extern "C" void perf_get_feedback() {}
-extern "C" void perf_hint() {}
-extern "C" int perf_lock_acq(int handle, int duration, int arg3[], int arg4) {
+void perf_get_feedback() {}
+void perf_hint() {}
+int perf_lock_acq(int handle, int duration, int arg3[], int arg4) {
     ALOGI("perf_lock_acq: handle: %d, duration: %d, arg3[0]: %d, arg4: %d",
             handle, duration, arg3[0], arg4);
     if (handle > 0)
@@ -13,12 +13,12 @@ extern "C" int perf_lock_acq(int handle, int duration, int arg3[], int arg4) {
 
     return 233;
 }
-extern "C" void perf_lock_cmd() {}
-extern "C" int perf_lock_rel(int handle) {
+void perf_lock_cmd() {}
+int perf_lock_rel(int handle) {
     ALOGI("perf_lock_rel: handle: %d", handle);
     if (handle > 0)
         return handle;
 
     return 233;
 }
-extern "C" void perf_lock_use_profile() {}
+void perf_lock_use_profile() {}