diff --git a/.gitignore b/.gitignore
index d0a55da..9e32a05 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,7 @@
 *.so
 
 # example binary
-examples/examples
\ No newline at end of file
+examples/examples
+
+# idea
+.idea/
\ No newline at end of file
diff --git a/version.go b/version.go
index 6349b02..80c3b66 100644
--- a/version.go
+++ b/version.go
@@ -73,7 +73,10 @@ func Print() {
 
 	xprintf("Go version", GoVersion)
 	xprintf("Git commit", GitCommit)
-	xprintf("Commit date", GitCommitDate)
+
+	if GitCommitDate != unknownProperty{
+		xprintf("Commit date", GitCommitDate)
+	}
 
 	if GitTreeState != unknownProperty {
 		xprintf("Git state", GitTreeState)