diff --git a/ext/pdo_odbc/odbc_stmt.c b/ext/pdo_odbc/odbc_stmt.c
index ea0dd0e53aac6..bd4a2f6162d09 100644
--- a/ext/pdo_odbc/odbc_stmt.c
+++ b/ext/pdo_odbc/odbc_stmt.c
@@ -32,7 +32,7 @@ enum pdo_odbc_conv_result {
 	PDO_ODBC_CONV_FAIL
 };
 
-static int pdo_odbc_sqltype_is_unicode(pdo_odbc_stmt *S, SWORD sqltype)
+static int pdo_odbc_sqltype_is_unicode(pdo_odbc_stmt *S, SQLSMALLINT sqltype)
 {
 	if (!S->assume_utf8) return 0;
 	switch (sqltype) {
@@ -287,7 +287,7 @@ static int odbc_stmt_param_hook(pdo_stmt_t *stmt, struct pdo_bound_param_data *p
 {
 	pdo_odbc_stmt *S = (pdo_odbc_stmt*)stmt->driver_data;
 	RETCODE rc;
-	SWORD sqltype = 0, ctype = 0, scale = 0, nullable = 0;
+	SQLSMALLINT sqltype = 0, ctype = 0, scale = 0, nullable = 0;
 	SQLULEN precision = 0;
 	pdo_odbc_param *P;
 	zval *parameter;
@@ -563,7 +563,7 @@ static int odbc_stmt_describe(pdo_stmt_t *stmt, int colno)
 	pdo_odbc_stmt *S = (pdo_odbc_stmt*)stmt->driver_data;
 	struct pdo_column_data *col = &stmt->columns[colno];
 	RETCODE rc;
-	SWORD	colnamelen;
+	SQLSMALLINT colnamelen;
 	SQLULEN	colsize;
 	SQLLEN displaysize = 0;
 
diff --git a/ext/pdo_odbc/php_pdo_odbc_int.h b/ext/pdo_odbc/php_pdo_odbc_int.h
index 6f1b99b0c5a29..0a453a0023f8b 100644
--- a/ext/pdo_odbc/php_pdo_odbc_int.h
+++ b/ext/pdo_odbc/php_pdo_odbc_int.h
@@ -116,7 +116,7 @@
 typedef struct {
 	char last_state[6];
 	char last_err_msg[SQL_MAX_MESSAGE_LENGTH];
-	SDWORD last_error;
+	SQLINTEGER last_error;
 	const char *file, *what;
 	int line;
 } pdo_odbc_errinfo;
@@ -133,7 +133,7 @@ typedef struct {
 	char *data;
 	zend_ulong datalen;
 	SQLLEN fetched_len;
-	SWORD	coltype;
+	SQLSMALLINT coltype;
 	char colname[128];
 	unsigned is_long;
 	unsigned is_unicode:1;