diff --git a/src/dehacked.c b/src/dehacked.c
index 2fed963f..632ddd4a 100644
--- a/src/dehacked.c
+++ b/src/dehacked.c
@@ -3069,7 +3069,7 @@ static void readmaincfg(MYFILE *f)
 				strncpy(timeattackfolder, gamedatafilename, min(filenamelen, sizeof (timeattackfolder)));
 				timeattackfolder[min(filenamelen, sizeof (timeattackfolder) - 1)] = '\0';
 
-				strncpy(savegamename, timeattackfolder, sizeof (timeattackfolder));
+				strncpy(savegamename, timeattackfolder, strlen(timeattackfolder));
 				strlcat(savegamename, "%u.ssg", sizeof(savegamename));
 				// can't use sprintf since there is %u in savegamename
 				strcatbf(savegamename, srb2home, PATHSEP);