diff --git a/src/tracerestrict.cpp b/src/tracerestrict.cpp
index 763dd5edc2..8913a7af6f 100644
--- a/src/tracerestrict.cpp
+++ b/src/tracerestrict.cpp
@@ -1003,6 +1003,10 @@ CommandCost CmdProgramSignalTraceRestrictProgMgmt(TileIndex tile, DoCommandFlag
 		}
 	}
 
+	if (type != TRDCT_PROG_RESET && !TraceRestrictProgram::CanAllocateItem()) {
+		return CMD_ERROR;
+	}
+
 	if (!(flags & DC_EXEC)) {
 		return CommandCost();
 	}