diff --git a/core/src/main/java/com/google/googlejavaformat/java/StringWrapper.java b/core/src/main/java/com/google/googlejavaformat/java/StringWrapper.java
index 81ea800da..ab4093a11 100644
--- a/core/src/main/java/com/google/googlejavaformat/java/StringWrapper.java
+++ b/core/src/main/java/com/google/googlejavaformat/java/StringWrapper.java
@@ -205,7 +205,8 @@ private void indentTextBlocks(
             initialLines.get(1).stripTrailing().length() - lines.get(0).stripTrailing().length();
 
         String prefix =
-            (deindent == 0 || lines.stream().anyMatch(x -> x.length() + startColumn > columnLimit))
+            (deindent == 0
+                    || lines.stream().anyMatch(x -> x.length() + startColumn - 1 > columnLimit))
                 ? ""
                 : " ".repeat(startColumn - 1);
 
diff --git a/core/src/test/resources/com/google/googlejavaformat/java/testdata/B361077825.input b/core/src/test/resources/com/google/googlejavaformat/java/testdata/B361077825.input
new file mode 100644
index 000000000..c93942a5d
--- /dev/null
+++ b/core/src/test/resources/com/google/googlejavaformat/java/testdata/B361077825.input
@@ -0,0 +1,15 @@
+class T {
+  String a =
+      """
+               # No implicit input file, because they can only be created outside a symbolic macro,
+      """;
+
+  String b =
+      """
+                # No implicit input file, because they can only be created outside a symbolic macro,
+      """;
+  String c =
+      """
+                 # No implicit input file, because they can only be created outside a symbolic macro,
+      """;
+}
diff --git a/core/src/test/resources/com/google/googlejavaformat/java/testdata/B361077825.output b/core/src/test/resources/com/google/googlejavaformat/java/testdata/B361077825.output
new file mode 100644
index 000000000..b407bfe26
--- /dev/null
+++ b/core/src/test/resources/com/google/googlejavaformat/java/testdata/B361077825.output
@@ -0,0 +1,15 @@
+class T {
+  String a =
+      """
+               # No implicit input file, because they can only be created outside a symbolic macro,
+      """;
+
+  String b =
+      """
+                # No implicit input file, because they can only be created outside a symbolic macro,
+      """;
+  String c =
+"""
+           # No implicit input file, because they can only be created outside a symbolic macro,
+""";
+}