diff --git a/CMakeLists.txt b/CMakeLists.txt
index cc0a2bab..80af1fbf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -519,6 +519,7 @@ if (ISLE_BUILD_APP)
     target_link_libraries(isle PRIVATE imgui)
     if(PSP)
       target_compile_definitions(imgui PRIVATE IMGUI_DISABLE_DEFAULT_SHELL_FUNCTIONS)
+      target_link_libraries(isle PRIVATE pspfpu)
     endif()
     find_path(valgrind_INCLUDE_PATH NAMES valgrind/callgrind.h)
     if(valgrind_INCLUDE_PATH)
@@ -742,6 +743,7 @@ if(MSVC)
   set(CPACK_GENERATOR ZIP)
 elseif(PSP)
     # Create an EBOOT.PBP file
+    set(BUILD_PRX 1)
     create_pbp_file(
         TARGET ${PROJECT_NAME}
         ICON_PATH "${CMAKE_SOURCE_DIR}/XMB/Game/ICON0.png"
diff --git a/ISLE/isleapp.cpp b/ISLE/isleapp.cpp
index 31f55ef0..7555393a 100644
--- a/ISLE/isleapp.cpp
+++ b/ISLE/isleapp.cpp
@@ -58,6 +58,10 @@
 #include "3ds/config.h"
 #endif
 
+#ifdef PSP
+#include <pspfpu.h>
+#endif
+
 DECOMP_SIZE_ASSERT(IsleApp, 0x8c)
 
 // GLOBAL: ISLE 0x410030
@@ -127,6 +131,10 @@ IsleApp::IsleApp()
 	m_frameDelta = 10;
 	m_windowActive = TRUE;
 
+#ifdef PSP
+	pspFpuSetEnable(0);
+#endif
+
 #ifdef COMPAT_MODE
 	{
 		MxRect32 r(0, 0, 639, 479);