diff --git a/LibOS/glibc-patches/glibc-2.23.patch b/LibOS/glibc-patches/glibc-2.23.patch
index ca5dbdf2..989878b9 100644
--- a/LibOS/glibc-patches/glibc-2.23.patch
+++ b/LibOS/glibc-patches/glibc-2.23.patch
@@ -86,7 +86,7 @@ diff -ruNp a/elf/Versions b/elf/Versions
      __pointer_chk_guard;
    }
 +  SHIM {
-+    syscalldb; glibc_version; glibc_option; register_library;
++    syscalldb; glibc_version; register_library;
 +  }
  }
 diff -ruNp a/Makeconfig b/Makeconfig
diff --git a/LibOS/glibc-patches/glibc-2.27.patch b/LibOS/glibc-patches/glibc-2.27.patch
index b8e185c2..df3eae1c 100644
--- a/LibOS/glibc-patches/glibc-2.27.patch
+++ b/LibOS/glibc-patches/glibc-2.27.patch
@@ -86,7 +86,7 @@ diff -ruNp a/elf/Versions b/elf/Versions
      __tunable_get_val;
    }
 +  SHIM {
-+    syscalldb; glibc_version; glibc_option; register_library;
++    syscalldb; glibc_version; register_library;
 +  }
  }
 diff -ruNp a/Makeconfig b/Makeconfig
diff --git a/LibOS/glibc-patches/syscalldb-api.patch b/LibOS/glibc-patches/syscalldb-api.patch
index 532480bb..95f1ce12 100644
--- a/LibOS/glibc-patches/syscalldb-api.patch
+++ b/LibOS/glibc-patches/syscalldb-api.patch
@@ -36,7 +36,7 @@ new file mode 100644
 index 0000000..7a56162
 --- /dev/null
 +++ b/syscalldb.c
-@@ -0,0 +1,16 @@
+@@ -0,0 +1,11 @@
 +#include "syscalldb.h"
 +#include <stdarg.h>
 +#include <errno.h>
@@ -48,17 +48,12 @@ index 0000000..7a56162
 +{
 +	return 0;
 +}
-+
-+long int glibc_option (const char * opt)
-+{
-+	return -EINVAL;
-+}
 diff --git a/syscalldb.h b/syscalldb.h
 new file mode 100644
 index 0000000..2833def
 --- /dev/null
 +++ b/syscalldb.h
-@@ -0,0 +1,39 @@
+@@ -0,0 +1,33 @@
 +#ifndef _SYSCALLDB_H_
 +#define _SYSCALLDB_H_
 +
@@ -89,12 +84,6 @@ index 0000000..2833def
 +#define SYSCALLDB_ASM                       \
 +    "callq *syscalldb@GOTPCREL(%rip)\n\t"
 +
-+long int glibc_option (const char * opt);
-+
-+asm (
-+".weak glibc_option\r\n"
-+".type glibc_option, @function\r\n");
-+
 +#endif /* Assembler */
 +
 +#endif /* _SYSCALLDB_H */
diff --git a/LibOS/shim/src/shim.map b/LibOS/shim/src/shim.map
index 9d8e9213..e049a520 100644
--- a/LibOS/shim/src/shim.map
+++ b/LibOS/shim/src/shim.map
@@ -1,6 +1,6 @@
 SHIM {
     global:
         syscalldb; register_library;
-        glibc_version; glibc_option;
+        glibc_version;
     local: *;
 };
diff --git a/LibOS/shim/src/shim_init.c b/LibOS/shim/src/shim_init.c
index 37b29f5f..b23b5da2 100644
--- a/LibOS/shim/src/shim_init.c
+++ b/LibOS/shim/src/shim_init.c
@@ -166,25 +166,6 @@ unsigned long parse_int (const char * str)
     return num;
 }
 
-long int glibc_option (const char * opt)
-{
-    char cfg[CONFIG_MAX];
-
-    if (!strcmp_static(opt, "heap_size")) {
-        ssize_t ret = get_config(root_config, "glibc.heap_size", cfg, sizeof(cfg));
-        if (ret <= 0) {
-            debug("no glibc option: %s (err=%ld)\n", opt, ret);
-            return -ENOENT;
-        }
-
-        long int heap_size = parse_int(cfg);
-        debug("glibc option: heap_size = %ld\n", heap_size);
-        return (long int) heap_size;
-    }
-
-    return -EINVAL;
-}
-
 void * migrated_memory_start;
 void * migrated_memory_end;