diff --git a/projects/openrct2.vcxproj b/projects/openrct2.vcxproj
index 00362abcc4..89c9d0d52b 100644
--- a/projects/openrct2.vcxproj
+++ b/projects/openrct2.vcxproj
@@ -110,6 +110,7 @@
     <ClCompile Include="..\src\window_map.c" />
     <ClCompile Include="..\src\window_new_ride.c" />
     <ClCompile Include="..\src\window_options.c" />
+    <ClCompile Include="..\src\window_peep.c" />
     <ClCompile Include="..\src\window_ride_list.c" />
     <ClCompile Include="..\src\window_save_prompt.c" />
     <ClCompile Include="..\src\window_staff.c" />
diff --git a/projects/openrct2.vcxproj.filters b/projects/openrct2.vcxproj.filters
index dd606605a9..00b53db492 100644
--- a/projects/openrct2.vcxproj.filters
+++ b/projects/openrct2.vcxproj.filters
@@ -332,6 +332,9 @@
     <ClCompile Include="..\src\award.c">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\src\window_peep.c">
+      <Filter>Windows</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\openrct2.exe">
diff --git a/src/window.h b/src/window.h
index ec54076f1b..de50344044 100644
--- a/src/window.h
+++ b/src/window.h
@@ -23,6 +23,7 @@
 
 #include "gfx.h"
 #include "park.h"
+#include "peep.h"
 #include "rct2.h"
 
 struct rct_window;
@@ -354,6 +355,7 @@ void window_water_open();
 void window_guest_list_open();
 void window_map_open();
 void window_options_open();
+void window_peep_open(rct_peep* peep);
 void window_park_awards_open();
 void window_park_entrance_open();
 void window_park_guests_open();
diff --git a/src/window_guest_list.c b/src/window_guest_list.c
index bea5fa5863..16882c7389 100644
--- a/src/window_guest_list.c
+++ b/src/window_guest_list.c
@@ -477,7 +477,8 @@ static void window_guest_list_scrollmousedown()
 
 			if (i == 0) {
 				// Open guest window
-				RCT2_CALLPROC_X(0x006989E9, 0, 0, 0, (int)peep, 0, 0, 0);
+				window_peep_open(peep);
+				
 				break;
 			} else {
 				i--;