diff --git a/icu4c/source/i18n/csrsbcs.cpp b/icu4c/source/i18n/csrsbcs.cpp
index 72fb959e31d..f969c271c5d 100644
--- a/icu4c/source/i18n/csrsbcs.cpp
+++ b/icu4c/source/i18n/csrsbcs.cpp
@@ -28,6 +28,10 @@ NGramParser::NGramParser(const int32_t *theNgramList, const uint8_t *theCharMap)
     ngramCount = hitCount = 0;
 }
 
+NGramParser::~NGramParser()
+{
+}
+
 /*
  * Binary search for value in table, which must have exactly 64 entries.
  */
diff --git a/icu4c/source/i18n/csrsbcs.h b/icu4c/source/i18n/csrsbcs.h
index bd2a264530e..935a3e7e289 100644
--- a/icu4c/source/i18n/csrsbcs.h
+++ b/icu4c/source/i18n/csrsbcs.h
@@ -33,6 +33,7 @@ protected:
 
 public:
     NGramParser(const int32_t *theNgramList, const uint8_t *theCharMap);
+    virtual ~NGramParser();
 
 private:
     /*