diff --git a/libticables/trunk/CMakeLists.txt b/libticables/trunk/CMakeLists.txt
index 964733225..cb6b0bec6 100644
--- a/libticables/trunk/CMakeLists.txt
+++ b/libticables/trunk/CMakeLists.txt
@@ -39,8 +39,8 @@ set(PUBLIC_HEADERS
         src/timeout.h)
 
 if(WIN32)
-    list(APPEND HEADER_FILES "src/win64/rwp.h")
-    list(APPEND SRC_FILES "src/win64/rwp.c")
+    list(APPEND HEADER_FILES "src/win64/rwp.h" "src/win32/dha.h")
+    list(APPEND SRC_FILES "src/win64/rwp.c" "src/win32/dha.c")
 endif()
 
 # external deps lookup
diff --git a/libticables/trunk/src/win32/dha.h b/libticables/trunk/src/win32/dha.h
index 440ed918d..d8fb65ff8 100644
--- a/libticables/trunk/src/win32/dha.h
+++ b/libticables/trunk/src/win32/dha.h
@@ -22,9 +22,18 @@
 #ifndef __DHA_H__
 #define __DHA_H__
 
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
 int dha_detect(int* result);
 
 int dha_enable(void);
 int dha_disable(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif