diff --git a/libobs/obs-module.h b/libobs/obs-module.h
index 5fcf3048c..58b6af5c6 100644
--- a/libobs/obs-module.h
+++ b/libobs/obs-module.h
@@ -25,8 +25,9 @@
 #define MODULE_EXPORT EXPORT
 #endif
 
-#define OBS_SIZE_FUNC(structure, func)                       \
-	MODULE_EXPORT size_t func(void);                     \
+#define OBS_SIZE_FUNC(structure, func)                         \
+	MODULE_EXPORT size_t func(void);                       \
+	uint32_t obs_module_ver(void) {return LIBOBS_API_VER;} \
 	size_t func(void) {return sizeof(struct structure);}
 
 /**