diff --git a/src/renderer/components/_atoms/graphical-editor/fbd/autocomplete/index.tsx b/src/renderer/components/_atoms/graphical-editor/fbd/autocomplete/index.tsx
index 11013763a..07d3db619 100644
--- a/src/renderer/components/_atoms/graphical-editor/fbd/autocomplete/index.tsx
+++ b/src/renderer/components/_atoms/graphical-editor/fbd/autocomplete/index.tsx
@@ -4,6 +4,7 @@ import { useOpenPLCStore } from '@root/renderer/store'
 import { extractNumberAtEnd } from '@root/renderer/store/slices/project/validation/variables'
 import { PLCVariable } from '@root/types/PLC'
 import { cn } from '@root/utils'
+import { getLiteralType } from '@root/utils/keywords'
 import { newGraphicalEditorNodeID } from '@root/utils/new-graphical-editor-node-id'
 import { expandArrayVariables } from '@root/utils/PLC/array-variable-utils'
 import { Node } from '@xyflow/react'
@@ -241,6 +242,7 @@ const FBDBlockAutoComplete = forwardRef<HTMLDivElement, FBDBlockAutoCompleteProp
 
     const submit = ({ variable }: { variable: { id: string; name: string } }) => {
       if (variable.id === 'add') {
+        if (getLiteralType(valueToSearch)) return
         submitAddVariable({ variableName: valueToSearch })
         return
       }
diff --git a/src/renderer/components/_atoms/graphical-editor/ladder/autocomplete/index.tsx b/src/renderer/components/_atoms/graphical-editor/ladder/autocomplete/index.tsx
index 1b516811c..c7475b0fb 100644
--- a/src/renderer/components/_atoms/graphical-editor/ladder/autocomplete/index.tsx
+++ b/src/renderer/components/_atoms/graphical-editor/ladder/autocomplete/index.tsx
@@ -3,6 +3,7 @@ import { useOpenPLCStore } from '@root/renderer/store'
 import { extractNumberAtEnd } from '@root/renderer/store/slices/project/validation/variables'
 import { PLCVariable } from '@root/types/PLC'
 import { cn } from '@root/utils'
+import { getLiteralType } from '@root/utils/keywords'
 import { expandArrayVariables } from '@root/utils/PLC/array-variable-utils'
 import { Node } from '@xyflow/react'
 import { ComponentPropsWithRef, forwardRef } from 'react'
@@ -212,6 +213,7 @@ const VariablesBlockAutoComplete = forwardRef<HTMLDivElement, VariablesBlockAuto
 
     const submit = ({ variable }: { variable: { id: string; name: string } }) => {
       if (variable.id === 'add') {
+        if (getLiteralType(valueToSearch)) return
         submitAddVariable({ variableName: valueToSearch })
         return
       }
diff --git a/src/renderer/components/_atoms/graphical-editor/ladder/coil.tsx b/src/renderer/components/_atoms/graphical-editor/ladder/coil.tsx
index 68838595d..bb05640ab 100644
--- a/src/renderer/components/_atoms/graphical-editor/ladder/coil.tsx
+++ b/src/renderer/components/_atoms/graphical-editor/ladder/coil.tsx
@@ -10,6 +10,7 @@ import {
 } from '@root/renderer/assets/icons/flow/Coil'
 import { useOpenPLCStore } from '@root/renderer/store'
 import { cn, generateNumericUUID } from '@root/utils'
+import { getLiteralType } from '@root/utils/keywords'
 import type { Node, NodeProps } from '@xyflow/react'
 import { Position } from '@xyflow/react'
 import type { ReactNode } from 'react'
@@ -476,7 +477,8 @@ export const Coil = (block: CoilProps) => {
                 // Call triggerSubmit synchronously before blur to avoid race condition
                 // where autocomplete unmounts before processing the Enter key
                 autocompleteRef.current?.triggerSubmit?.()
-                inputVariableRef.current?.blur({ submit: false })
+                // For literals/constants, let the blur handler process them
+                inputVariableRef.current?.blur({ submit: !!getLiteralType(coilVariableValue) })
                 return
               }
               setKeyPressedAtTextarea(e.key)
diff --git a/src/renderer/components/_atoms/graphical-editor/ladder/contact.tsx b/src/renderer/components/_atoms/graphical-editor/ladder/contact.tsx
index e58925c47..cdb4f21ce 100644
--- a/src/renderer/components/_atoms/graphical-editor/ladder/contact.tsx
+++ b/src/renderer/components/_atoms/graphical-editor/ladder/contact.tsx
@@ -8,6 +8,7 @@ import {
 } from '@root/renderer/assets/icons/flow/Contact'
 import { useOpenPLCStore } from '@root/renderer/store'
 import { cn, generateNumericUUID } from '@root/utils'
+import { getLiteralType } from '@root/utils/keywords'
 import type { Node, NodeProps } from '@xyflow/react'
 import { Position } from '@xyflow/react'
 import type { ReactNode } from 'react'
@@ -446,7 +447,8 @@ export const Contact = (block: ContactProps) => {
                 // Call triggerSubmit synchronously before blur to avoid race condition
                 // where autocomplete unmounts before processing the Enter key
                 autocompleteRef.current?.triggerSubmit?.()
-                inputVariableRef.current?.blur({ submit: false })
+                // For literals/constants, let the blur handler process them
+                inputVariableRef.current?.blur({ submit: !!getLiteralType(contactVariableValue) })
                 return
               }
               setKeyPressedAtTextarea(e.key)
diff --git a/src/renderer/components/_atoms/graphical-editor/ladder/variable.tsx b/src/renderer/components/_atoms/graphical-editor/ladder/variable.tsx
index c4b5cbf6d..c225171eb 100644
--- a/src/renderer/components/_atoms/graphical-editor/ladder/variable.tsx
+++ b/src/renderer/components/_atoms/graphical-editor/ladder/variable.tsx
@@ -498,7 +498,9 @@ const VariableElement = (block: VariableProps) => {
               // Call triggerSubmit synchronously before blur to avoid race condition
               // where autocomplete unmounts before processing the Enter key
               autocompleteRef.current?.triggerSubmit?.()
-              inputVariableRef.current?.blur({ submit: false })
+              // For literals/constants, let the blur handler process them
+              // instead of suppressing it (triggerSubmit skips variable creation for literals)
+              inputVariableRef.current?.blur({ submit: !!getLiteralType(variableValue) })
               return
             }
             setKeyPressedAtTextarea(e.key)