diff --git a/common/common_quakedef.h b/common/common_quakedef.h
index c2424b8..577fc7a 100644
--- a/common/common_quakedef.h
+++ b/common/common_quakedef.h
@@ -109,7 +109,7 @@ void Host_Init (quakeparms_t *parms);
 void Host_Shutdown(void);
 void Host_Error (char *error, ...);
 void Host_EndGame (char *message, ...);
-void Host_Frame (float time);
+void Host_Frame (double time);
 void Host_Quit_f (void);
 void Host_ClientCommands (char *fmt, ...);
 void Host_ShutdownServer (qboolean crash);
diff --git a/common/host.c b/common/host.c
index 6258399..353fe54 100644
--- a/common/host.c
+++ b/common/host.c
@@ -238,7 +238,7 @@ int		nopacketcount;		// for Host_FrameMain
 	Run everything that happens on a per-frame basis
 */
 void
-Host_FrameMain ( float time )
+Host_FrameMain ( double time )
 {
 	static double	time1 = 0;
 	static double	time2 = 0;
@@ -365,7 +365,7 @@ Host_FrameMain ( float time )
 	to be handled and write it to console.
 */
 void
-Host_Frame ( float time )
+Host_Frame ( double time )
 {
 #ifdef QUAKEWORLD
 	Host_FrameMain (time);