diff --git a/CHANGELOG.md b/CHANGELOG.md
index c9649ff42..39e90632e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@ All notable changes to the Imperative package will be documented in this file.
 
 ## Recent Changes
 
-- Enhancement: Added `offSchema` property for ProfileInfo to indicate if argument is a known schema argument [#899](https://github.com/zowe/imperative/issues/899)
+- Enhancement: Added `inSchema` property for ProfileInfo to indicate if argument is a known schema argument [#899](https://github.com/zowe/imperative/issues/899)
 
 ## `5.16.0`
 
diff --git a/packages/config/__tests__/ProfileInfo.TeamConfig.test.ts b/packages/config/__tests__/ProfileInfo.TeamConfig.test.ts
index 109bdd26b..cd05cc12a 100644
--- a/packages/config/__tests__/ProfileInfo.TeamConfig.test.ts
+++ b/packages/config/__tests__/ProfileInfo.TeamConfig.test.ts
@@ -753,25 +753,25 @@ describe("TeamConfig ProfileInfo tests", () => {
             }
         });
 
-        it("should find correct offSchema args", async () => {
+        it("should find correct inSchema args", async () => {
             const profInfo = createNewProfInfo(teamProjDir);
             await profInfo.readProfilesFromDisk();
             const profAttrs = profInfo.getAllProfiles()[7] as IProfAttrs;
             const mergedArgs = profInfo.mergeArgsForProfile(profAttrs);
 
             const expectedArgs = [
-                { argName: "host", offSchema: false },
-                { argName: "port", offSchema: false },
-                { argName: "responseFormatHeader", offSchema: true },
-                { argName: "fakeOffSchemaArg", offSchema: true },
-                { argName: "user", offSchema: false },
-                { argName: "password", offSchema: false },
-                { argName: "rejectUnauthorized", offSchema: false },
+                { argName: "host", inSchema: true },
+                { argName: "port", inSchema: true },
+                { argName: "responseFormatHeader", inSchema: false },
+                { argName: "fakeOffSchemaArg", inSchema: false },
+                { argName: "user", inSchema: true },
+                { argName: "password", inSchema: true },
+                { argName: "rejectUnauthorized", inSchema: true },
             ];
 
             expect(mergedArgs.knownArgs.length).toBe(expectedArgs.length);
             for (const [idx, arg] of mergedArgs.knownArgs.entries()) {
-                expect(arg.offSchema).toEqual(expectedArgs[idx].offSchema);
+                expect(arg.inSchema).toEqual(expectedArgs[idx].inSchema);
             }
         });
 
diff --git a/packages/config/src/ProfileInfo.ts b/packages/config/src/ProfileInfo.ts
index d38781b0f..0e1f3a197 100644
--- a/packages/config/src/ProfileInfo.ts
+++ b/packages/config/src/ProfileInfo.ts
@@ -624,7 +624,7 @@ export class ProfileInfo {
                         argValue: propVal,
                         argLoc,
                         secure,
-                        offSchema: true
+                        inSchema: false
                     });
                 }
             }
@@ -656,7 +656,7 @@ export class ProfileInfo {
                             argValue: propVal,
                             argLoc,
                             secure,
-                            offSchema: true
+                            inSchema: false
                         });
                     }
                 }
@@ -748,7 +748,7 @@ export class ProfileInfo {
                                 dataType: this.argDataType(propInfoInSchema.type),
                                 argValue: (propInfoInSchema as ICommandProfileProperty).optionDefinition?.defaultValue,
                                 argLoc,
-                                offSchema: false,
+                                inSchema: true,
                                 // See https://github.com/zowe/imperative/issues/739
                                 secure: foundInSecureArray || propInfoInSchema.secure
                             };
@@ -763,7 +763,7 @@ export class ProfileInfo {
                     if (!argFound) {
                         mergedArgs.missingArgs.push({
                             argName: propName,
-                            offSchema: false,
+                            inSchema: true,
                             dataType: this.argDataType(propInfoInSchema.type),
                             argValue: (propInfoInSchema as ICommandProfileProperty).optionDefinition?.defaultValue,
                             argLoc: { locType: ProfLocType.DEFAULT },
@@ -771,7 +771,7 @@ export class ProfileInfo {
                         });
                     }
                 } else {
-                    knownArg.offSchema = false;
+                    knownArg.inSchema = true;
                     knownArg.secure = knownArg.secure ?? propInfoInSchema.secure;
                     if (knownArg.secure) {
                         delete knownArg.argValue;
diff --git a/packages/config/src/doc/IProfArgAttrs.ts b/packages/config/src/doc/IProfArgAttrs.ts
index 370dda3d4..70c80512a 100644
--- a/packages/config/src/doc/IProfArgAttrs.ts
+++ b/packages/config/src/doc/IProfArgAttrs.ts
@@ -37,5 +37,5 @@ export interface IProfArgAttrs {
     secure?: boolean;
 
     /** Whether the argument value is defined in the schema file */
-    offSchema?: boolean;
+    inSchema?: boolean;
 }