diff --git a/src/Standards/PEAR/Sniffs/Functions/FunctionCallSignatureSniff.php b/src/Standards/PEAR/Sniffs/Functions/FunctionCallSignatureSniff.php
index b5e8695c15..dab9a8e0b2 100644
--- a/src/Standards/PEAR/Sniffs/Functions/FunctionCallSignatureSniff.php
+++ b/src/Standards/PEAR/Sniffs/Functions/FunctionCallSignatureSniff.php
@@ -340,7 +340,8 @@ public function processMultiLineCall(File $phpcsFile, $stackPtr, $openBracket, $
         // call itself is, so we can work out how far to
         // indent the arguments.
         $first = $phpcsFile->findFirstOnLine(T_WHITESPACE, $stackPtr, true);
-        if ($tokens[$first]['code'] === T_CONSTANT_ENCAPSED_STRING
+        if ($first !== false
+            && $tokens[$first]['code'] === T_CONSTANT_ENCAPSED_STRING
             && $tokens[($first - 1)]['code'] === T_CONSTANT_ENCAPSED_STRING
         ) {
             // We are in a multi-line string, so find the start and use
@@ -386,8 +387,10 @@ public function processMultiLineCall(File $phpcsFile, $stackPtr, $openBracket, $
 
             $fix = $phpcsFile->addFixableError($error, $first, 'OpeningIndent', $data);
             if ($fix === true) {
+                // Set adjustment for use later to determine whether argument indentation is correct when fixing.
                 $adjustment = ($functionIndent - $foundFunctionIndent);
-                $padding    = str_repeat(' ', $functionIndent);
+
+                $padding = str_repeat(' ', $functionIndent);
                 if ($foundFunctionIndent === 0) {
                     $phpcsFile->fixer->addContentBefore($first, $padding);
                 } else if ($tokens[$first]['code'] === T_INLINE_HTML) {
diff --git a/src/Standards/PEAR/Tests/Functions/FunctionCallSignatureUnitTest.inc b/src/Standards/PEAR/Tests/Functions/FunctionCallSignatureUnitTest.inc
index 612748fedf..fddd3cba18 100644
--- a/src/Standards/PEAR/Tests/Functions/FunctionCallSignatureUnitTest.inc
+++ b/src/Standards/PEAR/Tests/Functions/FunctionCallSignatureUnitTest.inc
@@ -567,3 +567,10 @@ content
       <p><?php require get_theme_file_path(
       '/theme_extra/test_block.php'
 ); ?></p>
+
+<!-- If the first token is inline HTML, the token itself should be adjusted, not the token before. -->
+<?php if (check_me() == 'value'): ?>
+  <?php include get_file_path(
+    'my_file.php'
+  ); ?>
+<?php endif; ?>
diff --git a/src/Standards/PEAR/Tests/Functions/FunctionCallSignatureUnitTest.inc.fixed b/src/Standards/PEAR/Tests/Functions/FunctionCallSignatureUnitTest.inc.fixed
index 00226de562..1c52523075 100644
--- a/src/Standards/PEAR/Tests/Functions/FunctionCallSignatureUnitTest.inc.fixed
+++ b/src/Standards/PEAR/Tests/Functions/FunctionCallSignatureUnitTest.inc.fixed
@@ -582,3 +582,10 @@ content
     <p><?php require get_theme_file_path(
         '/theme_extra/test_block.php'
 ); ?></p>
+
+<!-- If the first token is inline HTML, the token itself should be adjusted, not the token before. -->
+<?php if (check_me() == 'value'): ?>
+<?php include get_file_path(
+    'my_file.php'
+); ?>
+<?php endif; ?>
diff --git a/src/Standards/PEAR/Tests/Functions/FunctionCallSignatureUnitTest.php b/src/Standards/PEAR/Tests/Functions/FunctionCallSignatureUnitTest.php
index 4984de2bf6..de6366b77c 100644
--- a/src/Standards/PEAR/Tests/Functions/FunctionCallSignatureUnitTest.php
+++ b/src/Standards/PEAR/Tests/Functions/FunctionCallSignatureUnitTest.php
@@ -134,6 +134,8 @@ public function getErrorList($testFile='FunctionCallSignatureUnitTest.inc')
             559 => 1,
             567 => 1,
             568 => 1,
+            573 => 1,
+            574 => 1,
         ];
 
     }//end getErrorList()