diff --git a/include/nn/acp/device.h b/include/nn/acp/device.h
index 1ae6914..8938235 100644
--- a/include/nn/acp/device.h
+++ b/include/nn/acp/device.h
@@ -8,9 +8,17 @@
  * @{
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef int32_t ACPDeviceType;
 
 ACPResult
 ACPCheckApplicationDeviceEmulation(BOOL* emulation);
 
+#ifdef __cplusplus
+}
+#endif
+
 /** @} */
diff --git a/include/nn/acp/save.h b/include/nn/acp/save.h
index 32a2bc1..591661c 100644
--- a/include/nn/acp/save.h
+++ b/include/nn/acp/save.h
@@ -11,6 +11,10 @@
  * @{
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 ACPResult
 ACPCreateSaveDir(uint32_t persistentId,
                  ACPDeviceType deviceType);
@@ -33,4 +37,8 @@ ACPUnmountExternalStorage();
 ACPResult
 ACPUnmountSaveDir();
 
+#ifdef __cplusplus
+}
+#endif
+
 /** @} */
diff --git a/include/nn/acp/title.h b/include/nn/acp/title.h
index b9a6f54..2058444 100644
--- a/include/nn/acp/title.h
+++ b/include/nn/acp/title.h
@@ -11,6 +11,10 @@
  * @{
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef uint64_t ACPTitleId;
 typedef struct ACPMetaXml ACPMetaXml;
 
@@ -244,4 +248,8 @@ ACPGetTitleMetaDirByDevice(ACPTitleId titleId,
                            size_t directoryLen,
                            ACPDeviceType deviceType);
 
+#ifdef __cplusplus
+}
+#endif
+
 /** @} */