diff --git a/components/prism-hcl.js b/components/prism-hcl.js
index f7950f047d..86bacb96fb 100644
--- a/components/prism-hcl.js
+++ b/components/prism-hcl.js
@@ -1,5 +1,9 @@
 Prism.languages.hcl = {
 	'comment': /(?:\/\/|#).*|\/\*[\s\S]*?(?:\*\/|$)/,
+	'heredoc': {
+		pattern: /<<(\w+)(?:[^\1])*?\1/,
+		alias: 'string'
+	},
 	'keyword': [
 		{
 			pattern: /(?:resource|data)\s+(?:[\w-]+|"[\w-]+")(?=\s+"[\w-]+"\s+{)/i,
diff --git a/components/prism-hcl.min.js b/components/prism-hcl.min.js
index e5abbaf1a7..ba4a95a6e2 100644
--- a/components/prism-hcl.min.js
+++ b/components/prism-hcl.min.js
@@ -1 +1 @@
-Prism.languages.hcl={comment:/(?:\/\/|#).*|\/\*[\s\S]*?(?:\*\/|$)/,keyword:[{pattern:/(?:resource|data)\s+(?:[\w-]+|"[\w-]+")(?=\s+"[\w-]+"\s+{)/i,inside:{type:{pattern:/(resource|data|\s+)(?:[\w-]+|"[\w-]+")/i,lookbehind:!0,alias:"variable"}}},{pattern:/(?:provider|provisioner|variable|output|module|backend)\s+"?[\w-]+"?\s+(?={)/i,inside:{type:{pattern:/(provider|provisioner|variable|output|module|backend)\s+"?[\w-]+"?\s+/i,lookbehind:!0,alias:"variable"}}},{pattern:/[\w-]+(?=\s+{)/}],interpolation:{pattern:/\${(?:[\w[\](+)\-*%^"',?=:\/\s\\]+\.?)+}/i,inside:{type:{pattern:/((?:terraform|var|self|count|module|path|data|local)\.)[\w\*]+/i,lookbehind:!0,alias:"variable"},keyword:/terraform|var|self|count|module|path|data|local/i,"function":/\w+(?=\()/,string:/"(?:\\[\s\S]|[^\\"])*"/,punctuation:/[!"\$#%&'()*+,.\/;<=>@\[\\\]^`{|}~]/,number:/-?\d+\.?\d*/,others:{pattern:/[\w\*]+/,alias:"string"}}},property:[/[\w-\.]+(?=\s*=)/,/"(?:\\[\s\S]|[^\\"])+"(?=\s*[:=])/],string:/"(?:\\[\s\S]|[^\\"])*"/,number:/0x[\da-f]+|\d+\.?\d*(?:e[+-]?\d+)?/i,"boolean":/\b(?:true|false)\b/i,punctuation:/[=\[\]{}]/};
\ No newline at end of file
+Prism.languages.hcl={comment:/(?:\/\/|#).*|\/\*[\s\S]*?(?:\*\/|$)/,heredoc:{pattern:/<<(\w+)(?:[^\1])*?\1/,alias:"string"},keyword:[{pattern:/(?:resource|data)\s+(?:[\w-]+|"[\w-]+")(?=\s+"[\w-]+"\s+{)/i,inside:{type:{pattern:/(resource|data|\s+)(?:[\w-]+|"[\w-]+")/i,lookbehind:!0,alias:"variable"}}},{pattern:/(?:provider|provisioner|variable|output|module|backend)\s+"?[\w-]+"?\s+(?={)/i,inside:{type:{pattern:/(provider|provisioner|variable|output|module|backend)\s+"?[\w-]+"?\s+/i,lookbehind:!0,alias:"variable"}}},{pattern:/[\w-]+(?=\s+{)/}],property:[/[\w-\.]+(?=\s*=(?!=))/,/"(?:\\[\s\S]|[^\\"])+"(?=\s*[:=])/],string:{pattern:/"(?:[^\\$"]|\\[\s\S]|\$(?:(?=")|\$+|[^"${])|\$\{(?:[^{}"]|"(?:[^\\"]|\\[\s\S])*")*\})*"/,inside:{interpolation:{pattern:/(^|[^$])\$\{(?:[^{}"]|"(?:[^\\"]|\\[\s\S])*")*\}/,lookbehind:!0,inside:{type:{pattern:/((?:terraform|var|self|count|module|path|data|local)\.)[\w\*]+/i,lookbehind:!0,alias:"variable"},keyword:/terraform|var|self|count|module|path|data|local/gi,"function":/\w+(?=\()/,string:/"(?:\\[\s\S]|[^\\"])*"/,punctuation:/[!\$#%&'()*+,.\/;<=>@\[\\\]^`{|}~?:]/,number:/-?\d+\.?\d*/}}}},number:/0x[\da-f]+|\d+\.?\d*(?:e[+-]?\d+)?/i,"boolean":/\b(?:true|false)\b/i,punctuation:/[=\[\]{}]/};
\ No newline at end of file
diff --git a/tests/languages/hcl/string_feature.test b/tests/languages/hcl/string_feature.test
index 4b86b90398..d69f019cb9 100644
--- a/tests/languages/hcl/string_feature.test
+++ b/tests/languages/hcl/string_feature.test
@@ -1,6 +1,14 @@
 "double quoted\"' % string"
 multiline_literal = "hello
   world"
+foo = <<EOF
+  bar
+  baz
+  EOF
+bar = <<EOF_TEXT
+  bar
+  "baz"
+  EOF_TEXT
 
 ----------------------------------------------------
 
@@ -8,7 +16,13 @@ multiline_literal = "hello
 	["string", ["\"double quoted\\\"' % string\""]],
 	["property", "multiline_literal"],
 	["punctuation", "="],
-	["string", ["\"hello\r\n  world\""]]
+	["string", ["\"hello\r\n  world\""]],
+	["property", "foo"],
+	["punctuation", "="],
+	["heredoc", "<<EOF\r\n  bar\r\n  baz\r\n  EOF"],
+	["property", "bar"],
+	["punctuation", "="],
+	["heredoc", "<<EOF_TEXT\r\n  bar\r\n  \"baz\"\r\n  EOF_TEXT"]
 ]
 
 ----------------------------------------------------