diff --git a/hal/voice_extn/voice_extn.c b/hal/voice_extn/voice_extn.c
index 89b659c..6e92da8 100644
--- a/hal/voice_extn/voice_extn.c
+++ b/hal/voice_extn/voice_extn.c
@@ -20,6 +20,7 @@
 
 #include <errno.h>
 #include <math.h>
+#include <stdlib.h>
 #include <cutils/log.h>
 #include <cutils/str_parms.h>
 #include <sys/ioctl.h>
diff --git a/post_proc/bundle.c b/post_proc/bundle.c
index 8518e54..a6b0727 100644
--- a/post_proc/bundle.c
+++ b/post_proc/bundle.c
@@ -17,6 +17,7 @@
 #define LOG_TAG "offload_effect_bundle"
 //#define LOG_NDEBUG 0
 
+#include <stdlib.h>
 #include <cutils/list.h>
 #include <cutils/log.h>
 #include <system/thread_defs.h>