diff --git a/packages/config/src/parse.js b/packages/config/src/parse.js
index 406c9dac30..813a272c11 100644
--- a/packages/config/src/parse.js
+++ b/packages/config/src/parse.js
@@ -75,6 +75,6 @@ const validateTomlBlackslashes = function (logs, configString, featureFlags) {
 // This only applies to " and """ strings, not ' nor '''
 // Also, """ strings can use trailing backslashes.
 const INVALID_TOML_BLACKSLASH =
-  /= *(?:(?:""".*(?<!\\)(\\[^"\\btnfruU\n]).*""")|(?:"(?!").*(?<!\\)(\\[^"\\btnfruU]).*"))/su
+  /\n[a-zA-Z]+ *= *(?:(?:""".*(?<!\\)(\\[^"\\btnfruU\n]).*""")|(?:"(?!").*(?<!\\)(\\[^"\\btnfruU]).*"))/su
 
 module.exports = { parseConfig, parseOptionalConfig }
diff --git a/packages/config/tests/parse/fixtures/parse_backslash_equal/netlify.toml b/packages/config/tests/parse/fixtures/parse_backslash_equal/netlify.toml
new file mode 100644
index 0000000000..8d4e8bdf88
--- /dev/null
+++ b/packages/config/tests/parse/fixtures/parse_backslash_equal/netlify.toml
@@ -0,0 +1,4 @@
+[build]
+ignore = """
+  --test="value" \
+"""
diff --git a/packages/config/tests/parse/snapshots/tests.js.md b/packages/config/tests/parse/snapshots/tests.js.md
index 70d3f75f25..4f5b9261d7 100644
--- a/packages/config/tests/parse/snapshots/tests.js.md
+++ b/packages/config/tests/parse/snapshots/tests.js.md
@@ -1040,6 +1040,118 @@ Generated by [AVA](https://avajs.dev).
       "siteInfo": {}␊
     }`
 
+## Configuration file - detecting invalid backslash sequences in TOML does not misinterpret equal signs
+
+> Snapshot 1
+
+    `{␊
+      "accounts": [],␊
+      "addons": [],␊
+      "branch": "branch",␊
+      "buildDir": "packages/config/tests/parse/fixtures/parse_backslash_equal",␊
+      "config": {␊
+        "build": {␊
+          "environment": {},␊
+          "ignore": "  --test=/"value/" ",␊
+          "processing": {␊
+            "css": {},␊
+            "html": {},␊
+            "images": {},␊
+            "js": {}␊
+          },␊
+          "publish": "packages/config/tests/parse/fixtures/parse_backslash_equal",␊
+          "publishOrigin": "default",␊
+          "services": {}␊
+        },␊
+        "functions": {␊
+          "*": {}␊
+        },␊
+        "headers": [],␊
+        "plugins": [],␊
+        "redirects": []␊
+      },␊
+      "configPath": "packages/config/tests/parse/fixtures/parse_backslash_equal/netlify.toml",␊
+      "context": "production",␊
+      "env": {␊
+        "BRANCH": {␊
+          "sources": [␊
+            "general"␊
+          ],␊
+          "value": "branch"␊
+        },␊
+        "CACHED_COMMIT_REF": {␊
+          "sources": [␊
+            "general"␊
+          ],␊
+          "value": "HEXADECIMAL_ID"␊
+        },␊
+        "COMMIT_REF": {␊
+          "sources": [␊
+            "general"␊
+          ],␊
+          "value": "HEXADECIMAL_ID"␊
+        },␊
+        "CONTEXT": {␊
+          "sources": [␊
+            "general"␊
+          ],␊
+          "value": "production"␊
+        },␊
+        "GATSBY_TELEMETRY_DISABLED": {␊
+          "sources": [␊
+            "general"␊
+          ],␊
+          "value": "1"␊
+        },␊
+        "HEAD": {␊
+          "sources": [␊
+            "general"␊
+          ],␊
+          "value": "branch"␊
+        },␊
+        "LANG": {␊
+          "sources": [␊
+            "general"␊
+          ],␊
+          "value": "en_US.UTF-8"␊
+        },␊
+        "LANGUAGE": {␊
+          "sources": [␊
+            "general"␊
+          ],␊
+          "value": "en_US:en"␊
+        },␊
+        "LC_ALL": {␊
+          "sources": [␊
+            "general"␊
+          ],␊
+          "value": "en_US.UTF-8"␊
+        },␊
+        "NETLIFY_LOCAL": {␊
+          "sources": [␊
+            "general"␊
+          ],␊
+          "value": "true"␊
+        },␊
+        "NEXT_TELEMETRY_DISABLED": {␊
+          "sources": [␊
+            "general"␊
+          ],␊
+          "value": "1"␊
+        },␊
+        "PULL_REQUEST": {␊
+          "sources": [␊
+            "general"␊
+          ],␊
+          "value": "false"␊
+        }␊
+      },␊
+      "headersPath": "packages/config/tests/parse/fixtures/parse_backslash_equal/_headers",␊
+      "redirectsPath": "packages/config/tests/parse/fixtures/parse_backslash_equal/_redirects",␊
+      "repositoryRoot": "packages/config/tests/parse/fixtures/parse_backslash_equal",␊
+      "siteInfo": {}␊
+    }`
+
 ## Redirects - redirects file
 
 > Snapshot 1
diff --git a/packages/config/tests/parse/snapshots/tests.js.snap b/packages/config/tests/parse/snapshots/tests.js.snap
index 5ff56a960a..9043810678 100644
Binary files a/packages/config/tests/parse/snapshots/tests.js.snap and b/packages/config/tests/parse/snapshots/tests.js.snap differ
diff --git a/packages/config/tests/parse/tests.js b/packages/config/tests/parse/tests.js
index 0eaa88010c..2f5c2827f5 100644
--- a/packages/config/tests/parse/tests.js
+++ b/packages/config/tests/parse/tests.js
@@ -70,6 +70,12 @@ test('Configuration file - invalid backslash sequences in multiline single quote
   })
 })
 
+test('Configuration file - detecting invalid backslash sequences in TOML does not misinterpret equal signs', async (t) => {
+  await runFixture(t, 'parse_backslash_equal', {
+    flags: { featureFlags: { netlify_config_toml_backslash: true } },
+  })
+})
+
 test('Redirects - redirects file', async (t) => {
   await runFixture(t, 'redirects_file')
 })