diff --git a/source/dub/package_.d b/source/dub/package_.d
index 24717fb..a78eb54 100644
--- a/source/dub/package_.d
+++ b/source/dub/package_.d
@@ -302,7 +302,7 @@
 		if( !this.copyright.empty ) ret.copyright = this.copyright;
 		if( !this.license.empty ) ret.license = this.license;
 		if( !this.ddoxFilterArgs.empty ) ret["-ddoxFilterArgs"] = this.ddoxFilterArgs.serializeToJson();
-		if( this.dependencies ){
+		if( this.dependencies !is null ){
 			auto deps = Json.EmptyObject;
 			foreach( pack, d; this.dependencies ){
 				if( d.path.empty && !d.optional ){
diff --git a/source/dub/utils.d b/source/dub/utils.d
index 8bb3b78..8df68f8 100644
--- a/source/dub/utils.d
+++ b/source/dub/utils.d
@@ -78,7 +78,7 @@
 	foreach(cmd; commands){
 		logDebug("Running %s", cmd);
 		Pid pid;
-		if( env ) pid = spawnShell(cmd, env);
+		if( env !is null ) pid = spawnShell(cmd, env);
 		else pid = spawnShell(cmd);
 		auto exitcode = pid.wait();
 		enforce(exitcode == 0, "Command failed with exit code "~to!string(exitcode));