diff --git a/engine/client/cl_gameui.c b/engine/client/cl_gameui.c
index b39ee040..633a173f 100644
--- a/engine/client/cl_gameui.c
+++ b/engine/client/cl_gameui.c
@@ -1273,16 +1273,16 @@ static void pfnEnableTextInput( int enable )
 	Key_EnableTextInput( enable, false );
 }
 
-static int pfnGetRenderers( unsigned int num, char *shortName, size_t size1, char *readableName, size_t size2 )
+static int pfnGetRenderers( unsigned int num, char *short_name, size_t size1, char *long_name, size_t size2 )
 {
-	if( num >= ref.numRenderers )
+	if( num >= ref.num_renderers )
 		return 0;
 
-	if( shortName && size1 )
-		Q_strncpy( shortName, ref.shortNames[num], size1 );
+	if( short_name && size1 )
+		Q_strncpy( short_name, ref.short_names[num], size1 );
 
-	if( readableName && size2 )
-		Q_strncpy( readableName, ref.readableNames[num], size2 );
+	if( long_name && size2 )
+		Q_strncpy( long_name, ref.long_names[num], size2 );
 
 	return 1;
 }
diff --git a/engine/client/ref_common.c b/engine/client/ref_common.c
index e9e496c1..70346ae9 100644
--- a/engine/client/ref_common.c
+++ b/engine/client/ref_common.c
@@ -623,7 +623,7 @@ static void SetFullscreenModeFromCommandLine( void )
 static void R_CollectRendererNames( void )
 {
 	// ordering is important!
-	static const char *shortNames[] =
+	static const char *short_names[] =
 	{
 #if XASH_REF_GL_ENABLED
 		"gl",
@@ -646,7 +646,7 @@ static void R_CollectRendererNames( void )
 	};
 
 	// ordering is important here too!
-	static const char *readableNames[ARRAYSIZE( shortNames )] =
+	static const char *long_names[ARRAYSIZE( short_names )] =
 	{
 #if XASH_REF_GL_ENABLED
 		"OpenGL",
@@ -668,9 +668,9 @@ static void R_CollectRendererNames( void )
 #endif
 	};
 
-	ref.numRenderers = ARRAYSIZE( shortNames );
-	ref.shortNames = shortNames;
-	ref.readableNames = readableNames;
+	ref.num_renderers = ARRAYSIZE( short_names );
+	ref.short_names = short_names;
+	ref.long_names = long_names;
 }
 
 qboolean R_Init( void )
@@ -747,26 +747,26 @@ qboolean R_Init( void )
 	{
 		int i;
 
-		for( i = 0; i < ref.numRenderers; i++ )
+		for( i = 0; i < ref.num_renderers; i++ )
 		{
 			// skip renderer that was requested but failed to load
-			if( !Q_strcmp( requested_cmdline, ref.shortNames[i] ))
+			if( !Q_strcmp( requested_cmdline, ref.short_names[i] ))
 				continue;
 
-			if( !Q_strcmp( requested_cvar, ref.shortNames[i] ))
+			if( !Q_strcmp( requested_cvar, ref.short_names[i] ))
 				continue;
 
 			// do not show bruteforcing attempts, however, warn user about falling back
 			// to software mode
-			if( !Q_strcmp( "soft", ref.shortNames[i] ) && !host_developer.value )
+			if( !Q_strcmp( "soft", ref.short_names[i] ) && !host_developer.value )
 				Sys_Warn( "Can't initialize any hardware accelerated renderer. Falling back to software rendering...\n" );
 
-			success = R_LoadRenderer( ref.shortNames[i], !host_developer.value );
+			success = R_LoadRenderer( ref.short_names[i], !host_developer.value );
 
 			if( success )
 			{
 				// remember last valid renderer
-				Cvar_DirectSet( &r_refdll, ref.shortNames[i] );
+				Cvar_DirectSet( &r_refdll, ref.short_names[i] );
 				break;
 			}
 		}
diff --git a/engine/client/ref_common.h b/engine/client/ref_common.h
index ffd6ac80..c5b15d14 100644
--- a/engine/client/ref_common.h
+++ b/engine/client/ref_common.h
@@ -24,12 +24,12 @@ struct ref_state_s
 {
 	HINSTANCE       hInstance;
 	qboolean        initialized;
-	int             numRenderers;
+	int             num_renderers;
 	ref_interface_t dllFuncs;
 
 	// depends on build configuration
-	const char    **shortNames;
-	const char    **readableNames;
+	const char    **short_names;
+	const char    **long_names;
 };
 
 extern struct ref_state_s ref;
diff --git a/engine/menu_int.h b/engine/menu_int.h
index 8f68c43f..dba23f24 100644
--- a/engine/menu_int.h
+++ b/engine/menu_int.h
@@ -210,7 +210,7 @@ typedef struct ui_extendedfuncs_s {
 
 	// new engine extended api start here
 	// returns 1 if there are more in list, otherwise 0
-	int (*pfnGetRenderers)( unsigned int num, char *shortName, size_t size1, char *readableName, size_t size2 );
+	int (*pfnGetRenderers)( unsigned int num, char *short_name, size_t size1, char *long_name, size_t size2 );
 	double (*pfnDoubleTime)( void );
 	char *(*pfnParseFile)( char *data, char *buf, const int size, unsigned int flags, int *len );