diff --git a/src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarAggregationNode.cs b/src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarAggregationNode.cs
index 659acd25..f5c558c5 100644
--- a/src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarAggregationNode.cs
+++ b/src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarAggregationNode.cs
@@ -116,7 +116,7 @@ namespace LwipSnmpCodeGeneration
 				FunctionDeclaration getMethodDecl = new FunctionDeclaration(this.GetMethodName, isStatic: true);
 				getMethodDecl.Parameter.Add(instanceType);
 				getMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*"));
-				getMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_U16);
+				getMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_S16);
 
 				if (generateDeclarations)
 				{
diff --git a/src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarNode.cs b/src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarNode.cs
index 3298ae9b..b9b2ea81 100644
--- a/src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarNode.cs
+++ b/src/apps/snmp/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarNode.cs
@@ -135,7 +135,7 @@ namespace LwipSnmpCodeGeneration
 					FunctionDeclaration  getMethodDecl = new FunctionDeclaration(this.Name + LwipDefs.FnctSuffix_GetValue, isStatic: true);
 					getMethodDecl.Parameter.Add(new VariableType("instance", LwipDefs.Vt_StNodeInstance, "*"));
 					getMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*"));
-					getMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_U16);
+					getMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_S16);
 					mibFile.Declarations.Add(getMethodDecl);
 
 					Function getMethod = Function.FromDeclaration(getMethodDecl);