diff --git a/src/util/util.c b/src/util/util.c
index 1cb56a3511..5a81caccb8 100644
--- a/src/util/util.c
+++ b/src/util/util.c
@@ -203,7 +203,7 @@ int bitscanforward(int source)
 	#define OpenRCT2_POPCNT_MSVC
 #endif
 
-static int bitcount_available(void)
+static int bitcount_popcnt_available()
 {
 	// POPCNT support is declared as the 23rd bit of ECX with CPUID(EAX = 1).
 	#if defined(OpenRCT2_POPCNT_GNUC)
@@ -255,9 +255,9 @@ static int bitcount_lut(int source)
 
 static int(*bitcount_fn)(int);
 
-void bitcount_init(void)
+void bitcount_init()
 {
-	bitcount_fn = bitcount_available() ? bitcount_popcnt : bitcount_lut;
+	bitcount_fn = bitcount_popcnt_available() ? bitcount_popcnt : bitcount_lut;
 }
 
 int bitcount(int source)
diff --git a/src/util/util.h b/src/util/util.h
index 46e931b4f2..0132acf728 100644
--- a/src/util/util.h
+++ b/src/util/util.h
@@ -38,7 +38,7 @@ void path_end_with_separator(utf8 *path, size_t size);
 bool readentirefile(const utf8 *path, void **outBuffer, size_t *outLength);
 
 int bitscanforward(int source);
-void bitcount_init(void);
+void bitcount_init();
 int bitcount(int source);
 bool strequals(const char *a, const char *b, int length, bool caseInsensitive);
 int strcicmp(char const *a, char const *b);