diff --git a/common/include/args.h b/common/include/args.h
index df7624005..fe2be3a98 100644
--- a/common/include/args.h
+++ b/common/include/args.h
@@ -104,7 +104,7 @@ typedef struct Arg
 	int DbgNoCompressPigBitmap;
 	int DbgBpp;
 #ifdef OGL
-	int DbgAltTexMerge;
+	int DbgUseOldTextureMerge;
 	int DbgGlIntensity4Ok;
 	int DbgGlLuminance4Alpha4Ok;
 	int DbgGlRGBA2Ok;
diff --git a/similar/arch/ogl/ogl.cpp b/similar/arch/ogl/ogl.cpp
index 86b96e93f..a8a849593 100644
--- a/similar/arch/ogl/ogl.cpp
+++ b/similar/arch/ogl/ogl.cpp
@@ -432,7 +432,7 @@ void ogl_cache_level_textures(void)
 				if (tmap2 != 0){
 					PIGGY_PAGE_IN(Textures[tmap2&0x3FFF]);
 					bm2 = &GameBitmaps[Textures[tmap2&0x3FFF].index];
-					if (GameArg.DbgAltTexMerge == 0 || (bm2->bm_flags & BM_FLAG_SUPER_TRANSPARENT))
+					if (GameArg.DbgUseOldTextureMerge || (bm2->bm_flags & BM_FLAG_SUPER_TRANSPARENT))
 						bm = texmerge_get_cached_bitmap( tmap1, tmap2 );
 					else {
 						ogl_loadbmtexture(bm2);
diff --git a/similar/main/render.cpp b/similar/main/render.cpp
index f9042c88a..3bbdf7090 100644
--- a/similar/main/render.cpp
+++ b/similar/main/render.cpp
@@ -258,7 +258,7 @@ static void render_face(int segnum, int sidenum, int nv, int *vp, int tmap1, int
 	}
 
 #ifdef OGL
-	if (GameArg.DbgAltTexMerge){
+	if (!GameArg.DbgUseOldTextureMerge){
 		PIGGY_PAGE_IN(Textures[tmap1]);
 		bm = &GameBitmaps[Textures[tmap1].index];
 		if (tmap2){
diff --git a/similar/misc/args.cpp b/similar/misc/args.cpp
index 677f2fd99..00a99baa3 100644
--- a/similar/misc/args.cpp
+++ b/similar/misc/args.cpp
@@ -197,7 +197,7 @@ static void ReadCmdArgs(void)
 	GameArg.DbgBpp 			= (FindArg("-16bpp") ? 16 : 32);
 
 #ifdef OGL
-	GameArg.DbgAltTexMerge 		= !FindArg("-gl_oldtexmerge");
+	GameArg.DbgUseOldTextureMerge 		= FindArg("-gl_oldtexmerge");
 	GameArg.DbgGlIntensity4Ok 	= get_int_arg("-gl_intensity4_ok", 1);
 	GameArg.DbgGlLuminance4Alpha4Ok = get_int_arg("-gl_luminance4_alpha4_ok", 1);
 	GameArg.DbgGlRGBA2Ok 		= get_int_arg("-gl_rgba2_ok", 1);