diff --git a/pmd-dart/src/main/antlr4/net/sourceforge/pmd/lang/dart/antlr4/Dart2.g4 b/pmd-dart/src/main/antlr4/net/sourceforge/pmd/lang/dart/antlr4/Dart2.g4
index 7d8793edab..01bef8c093 100644
--- a/pmd-dart/src/main/antlr4/net/sourceforge/pmd/lang/dart/antlr4/Dart2.g4
+++ b/pmd-dart/src/main/antlr4/net/sourceforge/pmd/lang/dart/antlr4/Dart2.g4
@@ -351,16 +351,16 @@ SingleLineString
 
 fragment
 StringContentDQ
-  : ~('\\' | '"' /*| '$'*/ | '\n' | '\r')
+  : ~('\\' | '"' | '$' | '\n' | '\r')
   | '\\' ~('\n' | '\r')
-  //| stringInterpolation
+  | StringInterpolation
   ;
 
 fragment
 StringContentSQ
-  : ~('\\' | '\'' /*| '$'*/ | '\n' | '\r')
+  : ~('\\' | '\'' | '$' | '\n' | '\r')
   | '\\' ~('\n' | '\r')
-  //| stringInterpolation
+  | StringInterpolation
   ;
 
 MultiLineString
@@ -372,15 +372,16 @@ MultiLineString
 
 fragment
 StringContentTDQ
-  : ~('\\' | '"' /*| '$'*/)
+  : ~('\\' | '"' | '$')
   | '"' ~'"' | '""' ~'"'
-  //| stringInterpolation
+  | StringInterpolation
   ;
 
-fragment StringContentTSQ
-  : ~('\\' | '\'' /*| '$'*/)
+fragment
+StringContentTSQ
+  : ~('\\' | '\'' | '$')
   | '\'' ~'\'' | '\'\'' ~'\''
-  //| stringInterpolation
+  | StringInterpolation
   ;
 
 NEWLINE
@@ -390,10 +391,17 @@ NEWLINE
   ;
 
 // 16.5.1 String Interpolation
-stringInterpolation
-//  : '$' IDENTIFIER_NO_DOLLAR
-  : '$' identifier// FIXME
-  | '${' expression '}'
+fragment
+StringInterpolation
+  : '$' IDENTIFIER_NO_DOLLAR
+  | '${' StringInterpolationContent* '}'
+  ;
+
+fragment
+StringInterpolationContent
+  : ~('$' | '{' | '}')
+  | '$' IDENTIFIER_NO_DOLLAR
+  | '${' StringInterpolationContent* '}'
   ;
 
 // 16.6 Symbols
diff --git a/pmd-dart/src/test/java/net/sourceforge/pmd/cpd/DartTokenizerTest.java b/pmd-dart/src/test/java/net/sourceforge/pmd/cpd/DartTokenizerTest.java
index ec4a769c7e..72e0defad7 100644
--- a/pmd-dart/src/test/java/net/sourceforge/pmd/cpd/DartTokenizerTest.java
+++ b/pmd-dart/src/test/java/net/sourceforge/pmd/cpd/DartTokenizerTest.java
@@ -54,7 +54,10 @@ public class DartTokenizerTest extends CpdTextComparisonTest {
         doTest("imports");
     }
 
-
+    @Test
+    public void testStringInterpolation() {
+        doTest("string_interpolation");
+    }
 
     @Test
     public void testRegex() {
diff --git a/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/escape_sequences.dart b/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/escape_sequences.dart
index 7d70500426..995f806682 100644
--- a/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/escape_sequences.dart
+++ b/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/escape_sequences.dart
@@ -1,3 +1,3 @@
 var newline = '\n';
-var dollar = '$';
+var dollar = '$newLine';
 var escaped_dollar = "\$";
\ No newline at end of file
diff --git a/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/escape_sequences.txt b/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/escape_sequences.txt
index 12c378a8a6..54e5712200 100644
--- a/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/escape_sequences.txt
+++ b/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/escape_sequences.txt
@@ -8,7 +8,7 @@ L2
     [var]                                   1         3
     [dollar]                                5         10
     [=]                                     12        12
-    ['$']                                   14        16
+    ['$newLine']                            14        23
 L3
     [var]                                   1         3
     [escaped_dollar]                        5         18
diff --git a/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/string_interpolation.dart b/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/string_interpolation.dart
new file mode 100644
index 0000000000..2926939dbd
--- /dev/null
+++ b/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/string_interpolation.dart
@@ -0,0 +1,2 @@
+var stringInStringUnicode = "${"∆"}";
+var stringInStringNewline = "${"\n")}";
diff --git a/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/string_interpolation.txt b/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/string_interpolation.txt
new file mode 100644
index 0000000000..cace985d1f
--- /dev/null
+++ b/pmd-dart/src/test/resources/net/sourceforge/pmd/cpd/testdata/string_interpolation.txt
@@ -0,0 +1,12 @@
+    [Image] or [Truncated image[            Bcol      Ecol
+L1
+    [var]                                   1         3
+    [stringInStringUnicode]                 5         25
+    [=]                                     27        27
+    ["${"∆"}"]                              29        36
+L2
+    [var]                                   1         3
+    [stringInStringNewline]                 5         25
+    [=]                                     27        27
+    ["${"\\n")}"]                           29        38
+EOF