diff --git a/dict/dict0dict.c b/dict/dict0dict.c
index 7f393ba1433..2c3f61f24be 100644
--- a/dict/dict0dict.c
+++ b/dict/dict0dict.c
@@ -82,19 +82,6 @@ innobase_convert_from_id(
 	ulint		len);	/* in: length of 'to', in bytes;
 				should be at least 3 * strlen(to) + 1 */
 /**********************************************************************
-Compares NUL-terminated UTF-8 strings case insensitively.
-
-NOTE: the prototype of this function is copied from ha_innodb.cc! If you change
-this function, you MUST change also the prototype here! */
-UNIV_INTERN
-int
-innobase_strcasecmp(
-/*================*/
-				/* out: 0 if a=b, <0 if a<b, >1 if a>b */
-	const char*	a,	/* in: first string to compare */
-	const char*	b);	/* in: second string to compare */
-
-/**********************************************************************
 Makes all characters in a NUL-terminated UTF-8 string lower case.
 
 NOTE: the prototype of this function is copied from ha_innodb.cc! If you change
diff --git a/handler/ha_innodb.cc b/handler/ha_innodb.cc
index a07a8f60763..a7a6078cf0b 100644
--- a/handler/ha_innodb.cc
+++ b/handler/ha_innodb.cc
@@ -813,10 +813,7 @@ innobase_convert_from_id(
 }
 
 /**********************************************************************
-Compares NUL-terminated UTF-8 strings case insensitively.
-
-NOTE that the exact prototype of this function has to be in
-/innobase/dict/dict0dict.c! */
+Compares NUL-terminated UTF-8 strings case insensitively. */
 extern "C" UNIV_INTERN
 int
 innobase_strcasecmp(
diff --git a/handler/i_s.cc b/handler/i_s.cc
index a83d68d0e93..b924875f649 100644
--- a/handler/i_s.cc
+++ b/handler/i_s.cc
@@ -6,7 +6,6 @@ InnoDB INFORMATION SCHEMA tables interface to MySQL.
 Created July 18, 2007 Vasil Dimov
 *******************************************************/
 
-#include <strings.h>
 #include <mysql_priv.h>
 #include <mysqld_error.h>
 
@@ -931,7 +930,7 @@ trx_i_s_common_fill_table(
 
 	trx_i_s_cache_start_read(cache);
 
-	if (strcasecmp(table_name, "innodb_trx") == 0) {
+	if (innobase_strcasecmp(table_name, "innodb_trx") == 0) {
 
 		if (fill_innodb_trx_from_cache(
 			cache, thd, tables->table) != 0) {
@@ -939,7 +938,7 @@ trx_i_s_common_fill_table(
 			ret = 1;
 		}
 
-	} else if (strcasecmp(table_name, "innodb_locks") == 0) {
+	} else if (innobase_strcasecmp(table_name, "innodb_locks") == 0) {
 
 		if (fill_innodb_locks_from_cache(
 			cache, thd, tables->table) != 0) {
@@ -947,7 +946,7 @@ trx_i_s_common_fill_table(
 			ret = 1;
 		}
 
-	} else if (strcasecmp(table_name, "innodb_lock_waits") == 0) {
+	} else if (innobase_strcasecmp(table_name, "innodb_lock_waits") == 0) {
 
 		if (fill_innodb_lock_waits_from_cache(
 			cache, thd, tables->table) != 0) {
diff --git a/include/ha_prototypes.h b/include/ha_prototypes.h
index 436d030bc2c..5f971406139 100644
--- a/include/ha_prototypes.h
+++ b/include/ha_prototypes.h
@@ -126,5 +126,15 @@ innobase_get_cset_width(
 	ulint	cset,		/* in: MySQL charset-collation code */
 	ulint*	mbminlen,	/* out: minimum length of a char (in bytes) */
 	ulint*	mbmaxlen);	/* out: maximum length of a char (in bytes) */
+
+/**********************************************************************
+Compares NUL-terminated UTF-8 strings case insensitively. */
+UNIV_INTERN
+int
+innobase_strcasecmp(
+/*================*/
+				/* out: 0 if a=b, <0 if a<b, >1 if a>b */
+	const char*	a,	/* in: first string to compare */
+	const char*	b);	/* in: second string to compare */
 #endif
 #endif