diff --git a/gis/OTB/OTB.info b/gis/OTB/OTB.info
index 9435384cbb..555a0a9dc7 100644
--- a/gis/OTB/OTB.info
+++ b/gis/OTB/OTB.info
@@ -5,6 +5,6 @@ DOWNLOAD="https://github.com/orfeotoolbox/OTB/archive/6.6.0/OTB-6.6.0.tar.gz"
 MD5SUM="852b1766a5a321e944e366e4a3db20a4"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
-REQUIRES="gdal ITK OpenSceneGraph muParser python3 ossim Shark tinyxml"
+REQUIRES="blas gdal ITK OpenSceneGraph muParser python3 ossim Shark tinyxml"
 MAINTAINER="Benjamin Trigona-Harany"
 EMAIL="slackbuilds@jaxartes.net"