diff --git a/source/build/include/clip.h b/source/build/include/clip.h
index bfa935b3b..b88689e16 100644
--- a/source/build/include/clip.h
+++ b/source/build/include/clip.h
@@ -15,7 +15,8 @@
 extern "C" {
 #endif
 
-#define MAXCLIPNUM 3072
+#define MAXCLIPSECTORS 1024
+#define MAXCLIPNUM 2048
 
 #ifdef HAVE_CLIPSHAPE_FEATURE
 
@@ -82,7 +83,7 @@ extern linetype clipit[MAXCLIPNUM];
 
 extern int16_t clipnum;
 extern int32_t clipsectnum, origclipsectnum, clipspritenum;
-extern int16_t clipsectorlist[MAXCLIPNUM], origclipsectorlist[MAXCLIPNUM];
+extern int16_t clipsectorlist[MAXCLIPSECTORS], origclipsectorlist[MAXCLIPSECTORS];
 
 int clipinsidebox(vec2_t *vect, int wallnum, int walldist);
 int clipinsideboxline(int x, int y, int x1, int y1, int x2, int y2, int walldist);
diff --git a/source/build/src/clip.cpp b/source/build/src/clip.cpp
index bf85587bd..b519b8d91 100644
--- a/source/build/src/clip.cpp
+++ b/source/build/src/clip.cpp
@@ -14,7 +14,7 @@
 int16_t clipnum;
 linetype clipit[MAXCLIPNUM];
 int32_t clipsectnum, origclipsectnum, clipspritenum;
-int16_t clipsectorlist[MAXCLIPNUM], origclipsectorlist[MAXCLIPNUM];
+int16_t clipsectorlist[MAXCLIPSECTORS], origclipsectorlist[MAXCLIPSECTORS];
 #ifdef HAVE_CLIPSHAPE_FEATURE
 int16_t clipspritelist[MAXCLIPNUM];  // sector-like sprite clipping
 #endif