diff --git a/build/BuildLinuxTask.cs b/build/BuildLinuxTask.cs
index 3ddb7c0..dc43469 100644
--- a/build/BuildLinuxTask.cs
+++ b/build/BuildLinuxTask.cs
@@ -83,7 +83,7 @@ public override void Run(BuildContext context)
 
     private static string GetFFMpegConfigureFlags(BuildContext context)
     {
-        var ignoreCommentsAndNewLines = (string line) => !line.StartsWith('#') && !line.StartsWith(' ');
+        var ignoreCommentsAndNewLines = (string line) => !string.IsNullOrWhiteSpace(line) && !line.StartsWith('#');
         var configureFlags = context.FileReadLines("ffprobe.config").Where(ignoreCommentsAndNewLines);
         var osConfigureFlags = context.FileReadLines($"ffprobe.linux-x64.config").Where(ignoreCommentsAndNewLines);
         return string.Join(' ', configureFlags) + " " + string.Join(' ', osConfigureFlags);
diff --git a/build/BuildMacOSTask.cs b/build/BuildMacOSTask.cs
index 5c42e97..6ade354 100644
--- a/build/BuildMacOSTask.cs
+++ b/build/BuildMacOSTask.cs
@@ -198,7 +198,7 @@ private static void BuildX64(BuildContext context)
 
     private static string GetFFMpegConfigureFlags(BuildContext context, string rid)
     {
-        var ignoreCommentsAndNewLines = (string line) => !line.StartsWith('#') && !line.StartsWith(' ');
+        var ignoreCommentsAndNewLines = (string line) => !string.IsNullOrWhiteSpace(line) && !line.StartsWith('#');
         var configureFlags = context.FileReadLines("ffprobe.config").Where(ignoreCommentsAndNewLines);
         var osConfigureFlags = context.FileReadLines($"ffprobe.{rid}.config").Where(ignoreCommentsAndNewLines);
         return string.Join(' ', configureFlags) + " " + string.Join(' ', osConfigureFlags);
diff --git a/build/BuildWIndowsTask.cs b/build/BuildWIndowsTask.cs
index d22cd36..91ba4cb 100644
--- a/build/BuildWIndowsTask.cs
+++ b/build/BuildWIndowsTask.cs
@@ -96,7 +96,7 @@ public override void Run(BuildContext context)
 
     private static string GetFFProbConfigureFlags(BuildContext context)
     {
-        var ignoreCommentsAndNewLines = (string line) => !line.StartsWith('#') && !line.StartsWith(' ');
+        var ignoreCommentsAndNewLines = (string line) => !string.IsNullOrWhiteSpace(line) && !line.StartsWith('#');
         var configureFlags = context.FileReadLines("ffprobe.config").Where(ignoreCommentsAndNewLines);
         var osConfigureFlags = context.FileReadLines($"ffprobe.windows-x64.config").Where(ignoreCommentsAndNewLines);
         return string.Join(' ', configureFlags) + " " + string.Join(' ', osConfigureFlags);