diff --git a/ext/pdo_odbc/config.m4 b/ext/pdo_odbc/config.m4
index 25ce0811c59..024a3153c3d 100755
--- a/ext/pdo_odbc/config.m4
+++ b/ext/pdo_odbc/config.m4
@@ -160,7 +160,7 @@ functions required for PDO support.
 
   PHP_NEW_EXTENSION(pdo_odbc, pdo_odbc.c odbc_driver.c odbc_stmt.c, $ext_shared,,-I$pdo_inc_path $PDO_ODBC_INCLUDE)
   PHP_SUBST(PDO_ODBC_SHARED_LIBADD)
-  ifdef([PHP_ADD_EXTENDION_DEP],
+  ifdef([PHP_ADD_EXTENSION_DEP],
   [
     PHP_ADD_EXTENSION_DEP(pdo_odbc, pdo)
   ])