diff --git a/pkgs/os-specific/linux/kernel/linux-3.2.nix b/pkgs/os-specific/linux/kernel/linux-3.2.nix
index 59df5962744f..aff17db22f66 100644
--- a/pkgs/os-specific/linux/kernel/linux-3.2.nix
+++ b/pkgs/os-specific/linux/kernel/linux-3.2.nix
@@ -220,6 +220,12 @@ let
       CONNECTOR y
       PROC_EVENTS y
 
+      # Tracing
+      FTRACE y
+      FUNCTION_TRACER y
+      FTRACE_SYSCALLS y
+      SCHED_TRACER y
+
       ${if kernelPlatform ? kernelExtraConfig then kernelPlatform.kernelExtraConfig else ""}
       ${extraConfig}
     '';
diff --git a/pkgs/os-specific/linux/kernel/linux-3.3.nix b/pkgs/os-specific/linux/kernel/linux-3.3.nix
index 83b29fba85e8..5e863cc9b889 100644
--- a/pkgs/os-specific/linux/kernel/linux-3.3.nix
+++ b/pkgs/os-specific/linux/kernel/linux-3.3.nix
@@ -219,6 +219,12 @@ let
       CONNECTOR y
       PROC_EVENTS y
 
+      # Tracing
+      FTRACE y
+      FUNCTION_TRACER y
+      FTRACE_SYSCALLS y
+      SCHED_TRACER y
+
       ${if kernelPlatform ? kernelExtraConfig then kernelPlatform.kernelExtraConfig else ""}
       ${extraConfig}
     '';