diff --git a/src/kits/app/Messenger.cpp b/src/kits/app/Messenger.cpp
index de4660f3da..2294ee34d0 100644
--- a/src/kits/app/Messenger.cpp
+++ b/src/kits/app/Messenger.cpp
@@ -1,5 +1,5 @@
  //------------------------------------------------------------------------------
-//	Copyright (c) 2001-2002, OpenBeOS
+//	Copyright (c) 2001-2005, Haiku
 //
 //	Permission is hereby granted, free of charge, to any person obtaining a
 //	copy of this software and associated documentation files (the "Software"),
@@ -546,7 +546,7 @@ BMessenger::InitData(const char *signature, team_id team, status_t *result)
 		// a team ID is given
 		error = be_roster->GetRunningAppInfo(team, &info);
 		// Compare the returned signature with the supplied one.
-		if (error == B_OK && signature && strcmp(signature, info.signature))
+		if (error == B_OK && signature && strcasecmp(signature, info.signature))
 			error = B_MISMATCHED_VALUES;
 	}
 	// check whether the app flags say B_ARGV_ONLY
diff --git a/src/kits/app/Roster.cpp b/src/kits/app/Roster.cpp
index 864d415055..ec5145caf9 100644
--- a/src/kits/app/Roster.cpp
+++ b/src/kits/app/Roster.cpp
@@ -1,5 +1,5 @@
 //------------------------------------------------------------------------------
-//	Copyright (c) 2001-2002, OpenBeOS
+//	Copyright (c) 2001-2005, Haiku
 //
 //	Permission is hereby granted, free of charge, to any person obtaining a
 //	copy of this software and associated documentation files (the "Software"),
@@ -1903,7 +1903,7 @@ BRoster::resolve_app(const char *inType, entry_ref *ref,
 		char signature[B_MIME_TYPE_LENGTH];
 		if (appFileInfo.SetTo(&appFile) == B_OK
 			&& appFileInfo.GetSignature(signature) == B_OK) {
-			if (!strcmp(appMeta.Type(), signature))
+			if (!strcasecmp(appMeta.Type(), signature))
 				appMeta.SetAppHint(&_appRef);
 			else {
 				appMeta.SetAppHint(NULL);