diff --git a/icu4c/source/i18n/esctrn.cpp b/icu4c/source/i18n/esctrn.cpp
index 53627926c25..6906fbd3081 100644
--- a/icu4c/source/i18n/esctrn.cpp
+++ b/icu4c/source/i18n/esctrn.cpp
@@ -78,12 +78,12 @@ void EscapeTransliterator::registerIDs() {
  * Constructs an escape transliterator with the given ID and
  * parameters.  See the class member documentation for details.
  */
-EscapeTransliterator::EscapeTransliterator(const UnicodeString& ID,
+EscapeTransliterator::EscapeTransliterator(const UnicodeString& newID,
                          const UnicodeString& _prefix, const UnicodeString& _suffix,
                          int32_t _radix, int32_t _minDigits,
                          UBool _grokSupplementals,
                          EscapeTransliterator* adoptedSupplementalHandler) :
-    Transliterator(ID, NULL)
+    Transliterator(newID, NULL)
 {
     this->prefix = _prefix;
     this->suffix = _suffix;
diff --git a/icu4c/source/i18n/unesctrn.cpp b/icu4c/source/i18n/unesctrn.cpp
index 5822057d1aa..1d1a9dae66a 100644
--- a/icu4c/source/i18n/unesctrn.cpp
+++ b/icu4c/source/i18n/unesctrn.cpp
@@ -118,10 +118,11 @@ void UnescapeTransliterator::registerIDs() {
 /**
  * Constructor.  Takes the encoded spec array.
  */
-UnescapeTransliterator::UnescapeTransliterator(const UnicodeString& ID,
-                                               const UChar *spec) :
-    Transliterator(ID, NULL) {
-    this->spec = copySpec(spec);
+UnescapeTransliterator::UnescapeTransliterator(const UnicodeString& newID,
+                                               const UChar *newSpec) :
+    Transliterator(newID, NULL)
+{
+    this->spec = copySpec(newSpec);
 }
 
 /**