diff --git a/get_sources.sh b/get_sources.sh
index 44ef936..247c43e 100755
--- a/get_sources.sh
+++ b/get_sources.sh
@@ -102,13 +102,13 @@ else
     QUIET=''
 fi
 
-which git >/dev/null 2>&1
+command -v git >/dev/null 2>&1
 if [[ $? -ne 0 ]]; then
     echo 'You need git in PATH' >&2
     exit 1
 fi
 
-which curl >/dev/null 2>&1
+command -v curl >/dev/null 2>&1
 if [[ $? -ne 0 ]]; then
     echo 'You need curl in PATH' >&2
     exit 1