diff --git a/ComputeGraph/examples/example1/generated/scheduler.h b/ComputeGraph/examples/example1/generated/scheduler.h
index a907ece2..c1d5cb0d 100644
--- a/ComputeGraph/examples/example1/generated/scheduler.h
+++ b/ComputeGraph/examples/example1/generated/scheduler.h
@@ -7,8 +7,8 @@ The support classes and code is covered by CMSIS-DSP license.
 
 */
 
-#ifndef _SCHED_H_ 
-#define _SCHED_H_
+#ifndef _SCHEDULER_H_ 
+#define _SCHEDULER_H_
 
 #ifdef   __cplusplus
 extern "C"
diff --git a/ComputeGraph/examples/example1/graph.py b/ComputeGraph/examples/example1/graph.py
index 7c2981f4..76bbf3e5 100644
--- a/ComputeGraph/examples/example1/graph.py
+++ b/ComputeGraph/examples/example1/graph.py
@@ -37,8 +37,7 @@ class ProcessingNode(Node):
 floatType=CType(F32)
 src=Source("source",floatType,5)
 b=ProcessingNode("filter",floatType,7,5)
-b.addLiteralArg(4)
-b.addLiteralArg("Test")
+b.addLiteralArg(4,"Test")
 b.addVariableArg("someVariable")
 sink=Sink("sink",floatType,5)
 
diff --git a/PythonWrapper_README.md b/PythonWrapper_README.md
index a3b122b0..b380285b 100644
--- a/PythonWrapper_README.md
+++ b/PythonWrapper_README.md
@@ -239,6 +239,11 @@ The wrapper is now containing the compute graph Python scripts and you should re
 
 # Change history
 
+## Version 1.9.1:
+
+* Small fix to the compute graph generator. The `#ifdef` at beginning of the custom header should be different for different scheduler names
+* Improve `addLiteralArg` and `addVariableArg` in compute graph to use variable number of arguments
+
 ## Version 1.9.0:
 
 * New scheduling mode, in the compute graph generator, giving priority to sinks in the scheduling. The idea is to try to decrease the latency between sinks and sources.
diff --git a/cmsisdsp/cg/static/scheduler/node.py b/cmsisdsp/cg/static/scheduler/node.py
index 49d05988..3f20d969 100644
--- a/cmsisdsp/cg/static/scheduler/node.py
+++ b/cmsisdsp/cg/static/scheduler/node.py
@@ -300,17 +300,19 @@ class BaseNode:
         else:
             return(0)
 
-    def addLiteralArg(self,l):
-        if self.schedArgs:
-            self.schedArgs.append(ArgLiteral(l))
-        else:
-            self.schedArgs=[ArgLiteral(l)]
+    def addLiteralArg(self,*ls):
+        for l in ls:
+            if self.schedArgs:
+                self.schedArgs.append(ArgLiteral(l))
+            else:
+                self.schedArgs=[ArgLiteral(l)]
 
-    def addVariableArg(self,l):
-        if self.schedArgs:
-            self.schedArgs.append(VarLiteral(l))
-        else:
-            self.schedArgs=[VarLiteral(l)]
+    def addVariableArg(self,*ls):
+        for l in ls:
+            if self.schedArgs:
+                self.schedArgs.append(VarLiteral(l))
+            else:
+                self.schedArgs=[VarLiteral(l)]
 
     @property
     def isConstantNode(self):
diff --git a/cmsisdsp/cg/static/scheduler/templates/code.h b/cmsisdsp/cg/static/scheduler/templates/code.h
index 81405573..461f1865 100644
--- a/cmsisdsp/cg/static/scheduler/templates/code.h
+++ b/cmsisdsp/cg/static/scheduler/templates/code.h
@@ -7,8 +7,8 @@ The support classes and code is covered by CMSIS-DSP license.
 
 */
 
-#ifndef _SCHED_H_ 
-#define _SCHED_H_
+#ifndef _{{config.schedulerCFileName |replace(".h","")|upper()}}_H_ 
+#define _{{config.schedulerCFileName |replace(".h","")|upper()}}_H_
 
 {% macro optionalargs() -%}
 {% if config.cOptionalArgs %},{{config.cOptionalArgs}}{% endif %}
diff --git a/cmsisdsp/version.py b/cmsisdsp/version.py
index 3c94aa56..ee1fe1bf 100755
--- a/cmsisdsp/version.py
+++ b/cmsisdsp/version.py
@@ -1,2 +1,2 @@
 # Python wrapper version
-__version__ = "1.9.0"
+__version__ = "1.9.1"