diff --git a/var/spack/repos/builtin/packages/librdkafka/package.py b/var/spack/repos/builtin/packages/librdkafka/package.py
index 9d1a506dc19..df90516c227 100644
--- a/var/spack/repos/builtin/packages/librdkafka/package.py
+++ b/var/spack/repos/builtin/packages/librdkafka/package.py
@@ -31,3 +31,6 @@ class Librdkafka(AutotoolsPackage):
 
     depends_on("zstd")
     depends_on("lz4")
+    depends_on("curl")
+    depends_on("openssl")
+    depends_on("zlib")