diff --git a/hecl/include/hecl/hecl.hpp b/hecl/include/hecl/hecl.hpp
index e7f693b6b..8bf44193f 100644
--- a/hecl/include/hecl/hecl.hpp
+++ b/hecl/include/hecl/hecl.hpp
@@ -9,6 +9,10 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/statvfs.h>
+#if __linux__ || __APPLE__
+extern "C" int rep_closefrom(int lower);
+#define closefrom rep_closefrom
+#endif
 #else
 #ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN 1
diff --git a/hecl/lib/Blender/CMakeLists.txt b/hecl/lib/Blender/CMakeLists.txt
index c77da6a49..c21e64cce 100644
--- a/hecl/lib/Blender/CMakeLists.txt
+++ b/hecl/lib/Blender/CMakeLists.txt
@@ -3,8 +3,4 @@ set(BLENDER_SOURCES
     SDNARead.cpp
     HMDL.cpp)
 
-if(UNIX)
-  list(APPEND BLENDER_SOURCES closefrom.c)
-endif()
-
 hecl_add_list(Blender BLENDER_SOURCES)
diff --git a/hecl/lib/Blender/Connection.cpp b/hecl/lib/Blender/Connection.cpp
index c573abe59..13ed12385 100644
--- a/hecl/lib/Blender/Connection.cpp
+++ b/hecl/lib/Blender/Connection.cpp
@@ -20,12 +20,6 @@
 #if _WIN32
 #include <io.h>
 #include <fcntl.h>
-#else
-#include <unistd.h>
-#if __linux__ || __APPLE__
-extern "C" int rep_closefrom(int lower);
-#define closefrom rep_closefrom
-#endif
 #endif
 
 #undef min
diff --git a/hecl/lib/CMakeLists.txt b/hecl/lib/CMakeLists.txt
index 8b8b6f1a4..13cba12c6 100644
--- a/hecl/lib/CMakeLists.txt
+++ b/hecl/lib/CMakeLists.txt
@@ -75,6 +75,10 @@ set(COMMON_SOURCES
     atdna_Frontend.cpp
     atdna_CVar.cpp)
 
+if(UNIX)
+  list(APPEND PLAT_SRCS closefrom.c)
+endif()
+
 add_library(hecl-full
             ${BACKEND_SOURCES}
             ${FRONTEND_SOURCES}
diff --git a/hecl/lib/Blender/closefrom.c b/hecl/lib/closefrom.c
similarity index 100%
rename from hecl/lib/Blender/closefrom.c
rename to hecl/lib/closefrom.c
diff --git a/hecl/lib/hecl.cpp b/hecl/lib/hecl.cpp
index f85c1baef..e52ca5459 100644
--- a/hecl/lib/hecl.cpp
+++ b/hecl/lib/hecl.cpp
@@ -853,6 +853,7 @@ int RunProcess(const SystemChar* path, const SystemChar* const args[]) {
 #else
   pid_t pid = fork();
   if (!pid) {
+    closefrom(3);
     execvp(path, (char* const*)args);
     exit(1);
   }