diff --git a/build_core.sh b/build_core.sh
index 7a06f64885e137d38ab54c84516f8db636e593f5..5c1be3cd450d6f2e4a0682561f2f5ae4f3c7c220 100755
--- a/build_core.sh
+++ b/build_core.sh
@@ -38,7 +38,7 @@ else
     if [[ "$OSTYPE" == "linux-gnu"* ]]; then
       ACTUAL_FP=`sha256sum $GO_VERSION.tar.gz | cut -d " " -f1`
     else
-      ACTUAL_FP=`shasum -a 512256 $GO_VERSION.tar.gz | cut -d " " -f1`
+      ACTUAL_FP=`shasum -a 256 $GO_VERSION.tar.gz | cut -d " " -f1`
     fi
 
     if [[ ! $ACTUAL_FP == $EXPECTED_FP ]]