diff --git a/libc/libc.arm.brillo.map b/libc/libc.arm.brillo.map
index 76ef6de..95f7cba 100644
--- a/libc/libc.arm.brillo.map
+++ b/libc/libc.arm.brillo.map
@@ -164,7 +164,6 @@
     __set_tls; # arm mips
     __sF;
     __sigaction; # arm x86 mips
-    __signalfd4; # arm x86 mips
     __snprintf_chk;
     __socket; # arm x86 mips
     __sprintf_chk;
diff --git a/libc/libc.arm.map b/libc/libc.arm.map
index faf14ca..91cd84c 100644
--- a/libc/libc.arm.map
+++ b/libc/libc.arm.map
@@ -165,7 +165,6 @@
     __set_tls; # arm mips
     __sF;
     __sigaction; # arm x86 mips
-    __signalfd4; # arm x86 mips
     __snprintf_chk;
     __socket; # arm x86 mips
     __sprintf_chk;
diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index d59a894..ffdb86a 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -167,7 +167,6 @@
     __set_tls; # arm mips
     __sF;
     __sigaction; # arm x86 mips
-    __signalfd4; # arm x86 mips
     __snprintf_chk;
     __socket; # arm x86 mips
     __sprintf_chk;
diff --git a/libc/libc.mips.brillo.map b/libc/libc.mips.brillo.map
index b42ab0c..691a22a 100644
--- a/libc/libc.mips.brillo.map
+++ b/libc/libc.mips.brillo.map
@@ -162,7 +162,6 @@
     __set_tls; # arm mips
     __sF;
     __sigaction; # arm x86 mips
-    __signalfd4; # arm x86 mips
     __snprintf_chk;
     __socket; # arm x86 mips
     __sprintf_chk;
diff --git a/libc/libc.mips.map b/libc/libc.mips.map
index 4bd5ba8..0120e02 100644
--- a/libc/libc.mips.map
+++ b/libc/libc.mips.map
@@ -163,7 +163,6 @@
     __set_tls; # arm mips
     __sF;
     __sigaction; # arm x86 mips
-    __signalfd4; # arm x86 mips
     __snprintf_chk;
     __socket; # arm x86 mips
     __sprintf_chk;
diff --git a/libc/libc.x86.brillo.map b/libc/libc.x86.brillo.map
index ec4ce90..fbd7085 100644
--- a/libc/libc.x86.brillo.map
+++ b/libc/libc.x86.brillo.map
@@ -162,7 +162,6 @@
     __set_tid_address; # arm x86 mips
     __sF;
     __sigaction; # arm x86 mips
-    __signalfd4; # arm x86 mips
     __snprintf_chk;
     __socket; # arm x86 mips
     __sprintf_chk;
diff --git a/libc/libc.x86.map b/libc/libc.x86.map
index bf2c3ab..5eca698 100644
--- a/libc/libc.x86.map
+++ b/libc/libc.x86.map
@@ -163,7 +163,6 @@
     __set_tid_address; # arm x86 mips
     __sF;
     __sigaction; # arm x86 mips
-    __signalfd4; # arm x86 mips
     __snprintf_chk;
     __socket; # arm x86 mips
     __sprintf_chk;