diff --git a/plugins/channel/chanalyzer/chanalyzergui.cpp b/plugins/channel/chanalyzer/chanalyzergui.cpp
index 52bf0bb7f..1afb7fd4d 100644
--- a/plugins/channel/chanalyzer/chanalyzergui.cpp
+++ b/plugins/channel/chanalyzer/chanalyzergui.cpp
@@ -302,7 +302,7 @@ ChannelAnalyzerGUI::~ChannelAnalyzerGUI()
 
 bool ChannelAnalyzerGUI::setNewRate(int spanLog2)
 {
-	if ((spanLog2 < 1) || (spanLog2 > 6)) {
+	if ((spanLog2 < 0) || (spanLog2 > 6)) {
 		return false;
 	}
 
diff --git a/plugins/channel/chanalyzer/chanalyzergui.ui b/plugins/channel/chanalyzer/chanalyzergui.ui
index c6bf26f9a..ad6b10c93 100644
--- a/plugins/channel/chanalyzer/chanalyzergui.ui
+++ b/plugins/channel/chanalyzer/chanalyzergui.ui
@@ -262,7 +262,7 @@
        </font>
       </property>
       <property name="minimum">
-       <number>1</number>
+       <number>0</number>
       </property>
       <property name="maximum">
        <number>6</number>