diff --git a/config.m4 b/config.m4
index e60b13a..d084808 100644
--- a/config.m4
+++ b/config.m4
@@ -12,7 +12,7 @@ dnl Make sure that the comment is aligned:
 
 PHP_REQUIRE_CXX()
 PHP_ADD_LIBRARY(stdc++, 1, PDLIB_SHARED_LIBADD)
-PHP_ADD_LIBRARY(cblas, 1, PDLIB_SHARED_LIBADD)
+PHP_ADD_LIBRARY(openblas, 1, PDLIB_SHARED_LIBADD)
 PHP_ADD_LIBRARY(lapack, 1, PDLIB_SHARED_LIBADD)
 PHP_SUBST(PDLIB_SHARED_LIBADD)