diff --git a/src/import/ahx.c b/src/import/ahx.c
index 8b011a0f..3d851133 100644
--- a/src/import/ahx.c
+++ b/src/import/ahx.c
@@ -579,5 +579,7 @@ int import_ahx(FILE *f)
 	mused.song.default_panning[2] = 96;
 	mused.song.default_panning[3] = -96;
 
+	mused.song.flags |= MUS_USE_OLD_EFFECTS_BEHAVIOUR;
+
 	return 1;
 }
diff --git a/src/import/mod.c b/src/import/mod.c
index c5e38430..39192dd2 100644
--- a/src/import/mod.c
+++ b/src/import/mod.c
@@ -261,7 +261,7 @@ int import_mod(FILE *f)
 	mused.sequenceview_steps = 64;
 	mused.song.num_patterns = patterns * channels;
 	
-	mused.song.flags |= MUS_USE_OLD_SAMPLE_LOOP_BEHAVIOUR;
+	mused.song.flags |= MUS_USE_OLD_SAMPLE_LOOP_BEHAVIOUR | MUS_USE_OLD_EFFECTS_BEHAVIOUR;
 	
 	if (channels == 4)
 	{
diff --git a/src/import/org.c b/src/import/org.c
index 2ad66f4c..d653ceac 100644
--- a/src/import/org.c
+++ b/src/import/org.c
@@ -287,6 +287,8 @@ int import_org(FILE *f)
 	
 	if (orgsamp_loaded)
 		unload_orgsamp(&orgsamp);
+
+	mused.song.flags |= MUS_USE_OLD_EFFECTS_BEHAVIOUR;
 		
 	return 1;
 }
diff --git a/src/import/xm.c b/src/import/xm.c
index 56cdd5ee..cdec425a 100644
--- a/src/import/xm.c
+++ b/src/import/xm.c
@@ -231,7 +231,7 @@ int import_xm(FILE *f)
 	mused.sequenceview_steps = 64;
 	mused.song.num_patterns = header.num_patterns * header.num_channels;
 	
-	mused.song.flags |= MUS_USE_OLD_SAMPLE_LOOP_BEHAVIOUR;
+	mused.song.flags |= MUS_USE_OLD_SAMPLE_LOOP_BEHAVIOUR | MUS_USE_OLD_EFFECTS_BEHAVIOUR;
 	
 	int wt_e = 0;