diff --git a/src/elements/gel.cpp b/src/elements/gel.cpp
index 2031af133..0853a5f32 100644
--- a/src/elements/gel.cpp
+++ b/src/elements/gel.cpp
@@ -1,4 +1,4 @@
-#include "simulation\Element.h"
+#include "simulation/Element.h"
 
 int update_GEL(UPDATE_FUNC_ARGS) {
 	int r, rx, ry;