diff --git a/packages/ketcher-core/src/application/editor/actions/bond.ts b/packages/ketcher-core/src/application/editor/actions/bond.ts
index 3dec2bd0a2..04858b77e5 100644
--- a/packages/ketcher-core/src/application/editor/actions/bond.ts
+++ b/packages/ketcher-core/src/application/editor/actions/bond.ts
@@ -67,7 +67,7 @@ export function fromBondAddition(
       action.addOp(new FragmentAdd().perform(reStruct)) as FragmentAdd
     ).frid
 
-    const newBeginAtomId = (
+    const newBeginAtomId: number = (
       action.addOp(
         new AtomAdd(
           { ...beginAtomAttr, fragment: newFragmentId },
@@ -76,7 +76,7 @@ export function fromBondAddition(
       ) as AtomAdd
     ).data.aid
 
-    const newEndAtomId = (
+    const newEndAtomId: number = (
       action.addOp(
         new AtomAdd(
           { ...endAtomAttr, fragment: newFragmentId },
@@ -94,7 +94,7 @@ export function fromBondAddition(
   ) => {
     const fragmentId = atomGetAttr(reStruct, endAtomId, 'fragment')
 
-    const newBeginAtomId = (
+    const newBeginAtomId: number = (
       action.addOp(
         new AtomAdd(
           { ...beginAtomAttr, fragment: fragmentId },
@@ -122,7 +122,7 @@ export function fromBondAddition(
   ) => {
     const fragmentId = atomGetAttr(reStruct, beginAtomId, 'fragment')
 
-    const newEndAtomId = (
+    const newEndAtomId: number = (
       action.addOp(
         new AtomAdd(
           {
diff --git a/packages/ketcher-core/src/domain/entities/sgroup.ts b/packages/ketcher-core/src/domain/entities/sgroup.ts
index 9c874b7327..f591e7e988 100644
--- a/packages/ketcher-core/src/domain/entities/sgroup.ts
+++ b/packages/ketcher-core/src/domain/entities/sgroup.ts
@@ -651,6 +651,9 @@ export class SGroup {
     return !expanded && isSGroup
   }
 
+  /**
+   * @returns `undefined`: if it's salt or solvent
+   */
   static getAttachmentAtomIdBySGroupId(sGroupId: number, struct: Struct) {
     const functionalGroup = struct.functionalGroups.get(sGroupId)
     if (!SGroup.isSaltOrSolvent(functionalGroup?.name || '')) {
diff --git a/packages/ketcher-react/src/script/editor/tool/bond.ts b/packages/ketcher-react/src/script/editor/tool/bond.ts
index 2e8a8415ca..fc86a1137b 100644
--- a/packages/ketcher-react/src/script/editor/tool/bond.ts
+++ b/packages/ketcher-react/src/script/editor/tool/bond.ts
@@ -168,10 +168,10 @@ class BondTool {
           ) {
             const closestAttachmentAtomId =
               SGroup.getAttachmentAtomIdBySGroupId(closestSGroup.id, molecule)
-            if (
-              closestAttachmentAtomId &&
-              closestAttachmentAtomId !== beginAtom
-            ) {
+            const isSaltOrSolvent = closestAttachmentAtomId === undefined
+            const isBeginFunctionalGroupItself =
+              closestAttachmentAtomId === beginAtom
+            if (!isSaltOrSolvent && !isBeginFunctionalGroupItself) {
               endAtom = {
                 id: closestAttachmentAtomId,
                 map: 'atoms'