diff --git a/tom/src/tom/commands/inspirecommand.cpp b/tom/src/tom/commands/inspirecommand.cpp
index 12b965c16..4c0515b1d 100644
--- a/tom/src/tom/commands/inspirecommand.cpp
+++ b/tom/src/tom/commands/inspirecommand.cpp
@@ -63,7 +63,7 @@ int InspireCommand::run()
     // Seed the generator
     std::default_random_engine generator(rd());
     // Define the range
-    std::uniform_int_distribution<decltype (inspires)::size_type> // NOLINT(misc-const-correctness)
+    std::uniform_int_distribution<typename decltype (inspires)::size_type> // NOLINT(misc-const-correctness)
     distribute(0, size - 1); // -1 is ok because it's 0-based
 
     comment(inspires.at(distribute(generator)));