diff --git a/cerealblotchmodels/templates/cerealblotchmodels/barleynetblotchform.html b/cerealblotchmodels/templates/cerealblotchmodels/barleynetblotchform.html
index 7411d6a72a68e0f24b85bac3701b6331376acc7c..eb50a7b890a3e3d936c8ef19a16011303c8bde4d 100755
--- a/cerealblotchmodels/templates/cerealblotchmodels/barleynetblotchform.html
+++ b/cerealblotchmodels/templates/cerealblotchmodels/barleynetblotchform.html
@@ -362,9 +362,11 @@
 		} else if (selectedWeatherdataType === "weatherstation") {
 			if(theForm["weatherStationId"].options[theForm["weatherStationId"].selectedIndex].value == "-1") {
 				alert("Mangler værstasjon")
+				return false;
 			}
 		} else {
 			alert("Mangler type værdatakilde")
+			return false;
 		}
 
 		// Observation: Either no fields or all fields must be set
diff --git a/cerealblotchmodels/templates/cerealblotchmodels/septoriahumiditymodelform.html b/cerealblotchmodels/templates/cerealblotchmodels/septoriahumiditymodelform.html
index 2e29cd75498d71bb4b81925073ea6059b5204ea2..0645aacb254323cfefd3b29ae22f502492e55267 100644
--- a/cerealblotchmodels/templates/cerealblotchmodels/septoriahumiditymodelform.html
+++ b/cerealblotchmodels/templates/cerealblotchmodels/septoriahumiditymodelform.html
@@ -430,6 +430,7 @@
 			}
 		} else {
 			alert("Mangler type værdatakilde")
+			return false;
 		}
 		return true;
 	}