diff --git a/src/Axis.vala b/src/Axis.vala
index 67644b3..aab5309 100644
--- a/src/Axis.vala
+++ b/src/Axis.vala
@@ -102,7 +102,6 @@ namespace CairoChart {
 				// TODO: check format
 				_format = value;
 			}
-			default = "%.2Lf";
 		}
 
 		/**
@@ -114,7 +113,6 @@ namespace CairoChart {
 				// TODO: check format
 				_date_format = value;
 			}
-			default = "%Y.%m.%d";
 		}
 
 		/**
@@ -126,7 +124,6 @@ namespace CairoChart {
 				// TODO: check format
 				_time_format = value;
 			}
-			default = "%H:%M:%S";
 		}
 
 		/**
@@ -140,7 +137,6 @@ namespace CairoChart {
 				// TODO: check format
 				_dsec_signs = value;
 			}
-			default = 2;
 		}
 
 		/**
diff --git a/src/Chart.vala b/src/Chart.vala
index 266b3e6..65b0a4a 100644
--- a/src/Chart.vala
+++ b/src/Chart.vala
@@ -96,7 +96,6 @@ namespace CairoChart {
 		public virtual Color color {
 			protected get { return Color(); }
 			set { ctx.set_source_rgba (value.red, value.green, value.blue, value.alpha); }
-			default = Color();
 		}
 
 		/**
diff --git a/src/Font.vala b/src/Font.vala
index 857975a..ca2b692 100644
--- a/src/Font.vala
+++ b/src/Font.vala
@@ -51,7 +51,6 @@ namespace CairoChart {
 			set {
 				vspacing = hspacing = value;
 			}
-			default = 2;
 		}
 
 		/**
diff --git a/src/Series.vala b/src/Series.vala
index 624811f..af376e8 100644
--- a/src/Series.vala
+++ b/src/Series.vala
@@ -77,7 +77,6 @@ namespace CairoChart {
 				axis_x.grid_style.color.green = axis_y.grid_style.color.green = value.green;
 				axis_x.grid_style.color.blue = axis_y.grid_style.color.blue = value.blue;
 			}
-			default = Color (0, 0, 0, 1);
 		}
 
 		/**