diff --git a/src/core/control/ToolHandler.cpp b/src/core/control/ToolHandler.cpp
index 92a01823..a4b4579f 100644
--- a/src/core/control/ToolHandler.cpp
+++ b/src/core/control/ToolHandler.cpp
@@ -24,9 +24,9 @@ ToolHandler::ToolHandler(ToolListener* stateChangeListener, ActionHandler* actio
 
 void ToolHandler::initTools() {
     std::array<double, Tool::toolSizes> thickness;
-    // pen thicknesses = 0.15, 0.3, 0.5, 0.8, 2 mm
+    // pen thicknesses = 0.15, 0.38, 0.5, 0.8, 2 mm
     thickness[TOOL_SIZE_VERY_FINE] = 0.42;
-    thickness[TOOL_SIZE_FINE] = 0.85;
+    thickness[TOOL_SIZE_FINE] = 1.064;
     thickness[TOOL_SIZE_MEDIUM] = 1.41;
     thickness[TOOL_SIZE_THICK] = 2.26;
     thickness[TOOL_SIZE_VERY_THICK] = 5.67;