diff --git a/grammar.js b/grammar.js
index 234e513..3a5f5bd 100644
--- a/grammar.js
+++ b/grammar.js
@@ -286,12 +286,7 @@ module.exports = grammar({
       choice(
         seq(
           "'",
-          repeat(
-            choice(
-              alias($._unescaped_single_string_fragment, $.string_fragment),
-              $.escape_sequence
-            )
-          ),
+          alias($._unescaped_single_string_fragment, $.string_fragment),
           "'"
         ),
         seq(
@@ -306,7 +301,7 @@ module.exports = grammar({
         )
       ),
 
-    _unescaped_single_string_fragment: ($) => token.immediate(/[^'\\\n]+/),
+    _unescaped_single_string_fragment: ($) => token.immediate(/[^'\n]+/),
 
     _unescaped_double_string_fragment: ($) => token.immediate(/[^"\\\n]+/),
 
diff --git a/src/grammar.json b/src/grammar.json
index 7f29429..df716d9 100644
--- a/src/grammar.json
+++ b/src/grammar.json
@@ -1213,25 +1213,13 @@
               "value": "'"
             },
             {
-              "type": "REPEAT",
+              "type": "ALIAS",
               "content": {
-                "type": "CHOICE",
-                "members": [
-                  {
-                    "type": "ALIAS",
-                    "content": {
-                      "type": "SYMBOL",
-                      "name": "_unescaped_single_string_fragment"
-                    },
-                    "named": true,
-                    "value": "string_fragment"
-                  },
-                  {
-                    "type": "SYMBOL",
-                    "name": "escape_sequence"
-                  }
-                ]
-              }
+                "type": "SYMBOL",
+                "name": "_unescaped_single_string_fragment"
+              },
+              "named": true,
+              "value": "string_fragment"
             },
             {
               "type": "STRING",
@@ -1279,7 +1267,7 @@
       "type": "IMMEDIATE_TOKEN",
       "content": {
         "type": "PATTERN",
-        "value": "[^'\\\\\\n]+"
+        "value": "[^'\\n]+"
       }
     },
     "_unescaped_double_string_fragment": {
diff --git a/src/parser.c b/src/parser.c
index 5fa5ff9..a33d6fd 100644
Binary files a/src/parser.c and b/src/parser.c differ
diff --git a/test/corpus/shape.txt b/test/corpus/shape.txt
index d7f751e..0011321 100644
--- a/test/corpus/shape.txt
+++ b/test/corpus/shape.txt
@@ -57,6 +57,25 @@ Use quoted string as a shape key
   (shape (shape_key (string (string_fragment))))
 )
 
+================================================================================
+Use escape sequence in quoted string as a shape key
+================================================================================
+'\# hello \# world'
+
+"\# hello \# world"
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (shape (shape_key (string (string_fragment))))
+  (shape (shape_key (string
+    (escape_sequence)
+    (string_fragment)
+    (escape_sequence)
+    (string_fragment)
+  )))
+)
+
 ================================================================================
 Define multiple shapes using semicolons
 ================================================================================
@@ -159,9 +178,9 @@ foo: |go
 )
 
 ================================================================================
-Text block with quotes (d2-vim style)
+Text block with quotes (custom escape characters)
 ================================================================================
-foo: |`go
+foo: |$$$go
 
   awsSession := From(c.Request.Context())
 
@@ -171,7 +190,7 @@ foo: |`go
   ctx, cancelFn := context.WithTimeout(c.Request.Context(), AWS_TIMEOUT)
 
   defer cancelFn()
-`|
+$$$|
 
 --------------------------------------------------------------------------------
 
@@ -190,7 +209,7 @@ Online text block
 ================================================================================
 foo: | helo world |
 
-bar: |%%md ## hello world %%|
+bar: |##md ## hello world ##|
 
 --------------------------------------------------------------------------------
 
diff --git a/tree-sitter-d2.wasm b/tree-sitter-d2.wasm
index 96a1442..df6db89 100755
Binary files a/tree-sitter-d2.wasm and b/tree-sitter-d2.wasm differ