diff --git a/include/wrapper.h b/include/wrapper.h
index 3654b55..14db05c 100644
--- a/include/wrapper.h
+++ b/include/wrapper.h
@@ -11,7 +11,7 @@
 #include <stdbool.h>
 #include "voicemeeterRemote.h"
 
-enum kind
+enum kind : int
 {
     UNKNOWN = -1,
     BASIC = 1,
diff --git a/src/vmrcli.c b/src/vmrcli.c
index a957496..edb06cc 100644
--- a/src/vmrcli.c
+++ b/src/vmrcli.c
@@ -39,7 +39,7 @@
 /**
  * @enum The kind of values a get call may return.
  */
-enum
+enum restype : int
 {
     FLOAT_T,
     STRING_T,
@@ -50,7 +50,7 @@ enum
  */
 struct result
 {
-    int type;
+    enum restype type;
     union val
     {
         float f;
@@ -60,7 +60,7 @@ struct result
 
 static bool vflag = false;
 
-static void usage(void);
+static void usage();
 enum kind set_kind(char *kval);
 void interactive(PT_VMR vmr, bool with_prompt);
 void parse_input(PT_VMR vmr, char *input);