diff --git a/residue.cpp b/residue.cpp
index d3854c3..35833fc 100644
--- a/residue.cpp
+++ b/residue.cpp
@@ -1053,8 +1053,8 @@ void printSpaceTimeHeader(UserData data)
 	for (size_t k = 1; k <=data->nsp; k++) {
 		fprintf((data->output), "%15s\t",data->gas->speciesName(k-1).c_str());
 	}
-	fprintf((data->output), "%15s\t","HRR(J)");
-	fprintf((data->output), "%15s\n","Pressure(Pa)");
+	fprintf((data->output), "%15s\t","Pressure(Pa)");
+	fprintf((data->output), "%15s\n","HRR(J)");
 
 }