diff --git a/icu4c/source/common/sprpimpl.h b/icu4c/source/common/sprpimpl.h
index 2589d934883..2c46da0c4c8 100644
--- a/icu4c/source/common/sprpimpl.h
+++ b/icu4c/source/common/sprpimpl.h
@@ -39,8 +39,7 @@ enum {
     _IDNA_MAP_TO_NOTHING = 0xFFF
 };
 
-U_CFUNC UBool U_EXPORT2
-ustrprep_cleanup();
+
 
 /* error codes for prototyping 
 #define U_IDNA_ERROR_START                      U_ERROR_LIMIT
diff --git a/icu4c/source/common/strprep.cpp b/icu4c/source/common/strprep.cpp
index 861cc7c4702..8e7713b97ea 100644
--- a/icu4c/source/common/strprep.cpp
+++ b/icu4c/source/common/strprep.cpp
@@ -36,7 +36,7 @@ static UErrorCode dataErrorCode =U_ZERO_ERROR;
 static const char* DATA_NAME = "uidna";
 static const char* DATA_TYPE = "icu";
 
-U_CFUNC UBool U_EXPORT2
+U_CFUNC UBool
 ustrprep_cleanup() {
     if(idnData!=NULL) {
         udata_close(idnData);
diff --git a/icu4c/source/common/ucln_cmn.c b/icu4c/source/common/ucln_cmn.c
index a10b4e1511e..63b21d3bca0 100644
--- a/icu4c/source/common/ucln_cmn.c
+++ b/icu4c/source/common/ucln_cmn.c
@@ -70,7 +70,7 @@ u_cleanup(void)
     ures_cleanup();
     udata_cleanup();
     putil_cleanup();
-
+    ustrprep_cleanup();
     /*
      * WARNING! Destroying the global mutex can cause synchronization
      * problems.  ICU must be reinitialized from a single thread
diff --git a/icu4c/source/common/ucln_cmn.h b/icu4c/source/common/ucln_cmn.h
index 998b957b7c0..9cd0170b4cd 100644
--- a/icu4c/source/common/ucln_cmn.h
+++ b/icu4c/source/common/ucln_cmn.h
@@ -37,6 +37,8 @@ U_CFUNC UBool ustring_cleanup(void);
 
 U_CFUNC UBool breakiterator_cleanup(void);
 
+U_CFUNC UBool ustrprep_cleanup(void);
+
 #ifdef ICU_UNICODECONVERTER_USE_DEPRECATES
 /* Obsolete: The UnicodeConverter is obsolete and going away. */
 /* @return true if cleanup complete successfully*/