diff --git a/renderdoc/os/posix/android/android_process.cpp b/renderdoc/os/posix/android/android_process.cpp
index 7a4e8b4ed..73e357cf7 100644
--- a/renderdoc/os/posix/android/android_process.cpp
+++ b/renderdoc/os/posix/android/android_process.cpp
@@ -186,6 +186,8 @@ uint64_t Process::GetMemoryUsage()
   char line[512] = {};
   fgets(line, 511, f);
 
+  FileIO::fclose(f);
+
   uint32_t vmPages = 0;
   int num = sscanf(line, "%u", &vmPages);
 
diff --git a/renderdoc/os/posix/ggp/ggp_process.cpp b/renderdoc/os/posix/ggp/ggp_process.cpp
index 8b64d8548..68e2bc867 100644
--- a/renderdoc/os/posix/ggp/ggp_process.cpp
+++ b/renderdoc/os/posix/ggp/ggp_process.cpp
@@ -211,6 +211,8 @@ uint64_t Process::GetMemoryUsage()
   char line[512] = {};
   fgets(line, 511, f);
 
+  FileIO::fclose(f);
+
   uint32_t vmPages = 0;
   int num = sscanf(line, "%u", &vmPages);
 
diff --git a/renderdoc/os/posix/linux/linux_process.cpp b/renderdoc/os/posix/linux/linux_process.cpp
index 81192e746..504a25d83 100644
--- a/renderdoc/os/posix/linux/linux_process.cpp
+++ b/renderdoc/os/posix/linux/linux_process.cpp
@@ -675,11 +675,13 @@ uint64_t Process::GetMemoryUsage()
   char line[512] = {};
   fgets(line, 511, f);
 
-  uint32_t vmPages = 0;
-  int num = sscanf(line, "%u", &vmPages);
+  FileIO::fclose(f);
 
-  if(num == 1 && vmPages > 0)
-    return vmPages * (uint64_t)sysconf(_SC_PAGESIZE);
+  uint32_t rssPages = 0;
+  int num = sscanf(line, "%*u %u", &rssPages);
+
+  if(num == 1 && rssPages > 0)
+    return rssPages * (uint64_t)sysconf(_SC_PAGESIZE);
 
   return 0;
 }
diff --git a/util/test/demos/linux/linux_platform.cpp b/util/test/demos/linux/linux_platform.cpp
index 76a21822b..724091693 100644
--- a/util/test/demos/linux/linux_platform.cpp
+++ b/util/test/demos/linux/linux_platform.cpp
@@ -39,11 +39,13 @@ uint64_t GetMemoryUsage()
   char line[512] = {};
   fgets(line, 511, f);
 
-  uint32_t vmPages = 0;
-  int num = sscanf(line, "%u", &vmPages);
+  fclose(f);
 
-  if(num == 1 && vmPages > 0)
-    return vmPages * (uint64_t)sysconf(_SC_PAGESIZE);
+  uint32_t rssPages = 0;
+  int num = sscanf(line, "%*u %u", &rssPages);
+
+  if(num == 1 && rssPages > 0)
+    return rssPages * (uint64_t)sysconf(_SC_PAGESIZE);
 
   return 0;
 }