diff --git a/src/applets/cpu.c b/src/applets/cpu.c
index 87a10c8..ba565bc 100644
--- a/src/applets/cpu.c
+++ b/src/applets/cpu.c
@@ -102,6 +102,7 @@ static GtkWidget * _cpu_init(PanelApplet * applet)
 	gtk_widget_show_all(ret);
 	return ret;
 #else
+	error_set("%s", "cpu: Unsupported platform");
 	return NULL;
 #endif
 }
diff --git a/src/applets/memory.c b/src/applets/memory.c
index bc8a0f5..8366236 100644
--- a/src/applets/memory.c
+++ b/src/applets/memory.c
@@ -93,7 +93,7 @@ static GtkWidget * _memory_init(PanelApplet * applet)
 	gtk_widget_show_all(ret);
 	return ret;
 #else
-	/* FIXME not implemented */
+	error_set("%s", "memory: Unsupported platform");
 	return NULL;
 #endif
 }