diff --git a/settings.lua b/settings.lua
index d0917df..75b1f51 100644
--- a/settings.lua
+++ b/settings.lua
@@ -49,6 +49,6 @@ mapgen_rivers.max_catchment = get_settings('max_catchment', 'float', 40000)
 mapgen_rivers.riverbed_slope = get_settings('riverbed_slope', 'float', 0.4) * mapgen_rivers.blocksize
 mapgen_rivers.distort = get_settings('distort', 'bool', true)
 mapgen_rivers.biomes = get_settings('biomes', 'bool', true)
-mapgen_rivers.glaciers = get_settings('glaciers', 'bool', true)
+mapgen_rivers.glaciers = get_settings('glaciers', 'bool', false)
 mapgen_rivers.glacier_factor = get_settings('glacier_factor', 'float', 8)
 mapgen_rivers.elevation_chill = get_settings('elevation_chill', 'float', 0.25)
diff --git a/settingtypes.txt b/settingtypes.txt
index d0df00f..ec27454 100644
--- a/settingtypes.txt
+++ b/settingtypes.txt
@@ -37,7 +37,7 @@ mapgen_rivers_biomes (Biomes) bool true
 #    Whether to enable glaciers.
 #    Glaciers are widened river sections, covered by ice, that are generated in
 #    very cold areas.
-mapgen_rivers_glaciers (Glaciers) bool true
+mapgen_rivers_glaciers (Glaciers) bool false
 
 #    River channels are widened by this factor if they are a glacier.
 mapgen_rivers_glacier_widening_factor (Glacier widening factor) float 8.0 1.0 20.0