diff --git a/configure b/configure
index 8f2ede6f3..d5c9ff67e 100755
--- a/configure
+++ b/configure
@@ -4813,10 +4813,6 @@ _ACEOF
 #define LINUX 1
 _ACEOF
 
-    cat >>confdefs.h <<\_ACEOF
-#define PCAP_TIMEOUT_IGNORED 1
-_ACEOF
-  # libpcap doesn't even LOOK at the timeout you give it under Linux
     LDFLAGS="-Wl,-E $LDFLAGS" # needed for nse-C-module support
     ;;
   *-apple-darwin*)
diff --git a/configure.ac b/configure.ac
index 7582c0be2..231a5089c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -177,7 +177,6 @@ case "$host" in
     ;;
   *-linux*)
     AC_DEFINE(LINUX)
-    AC_DEFINE(PCAP_TIMEOUT_IGNORED)  # libpcap doesn't even LOOK at the timeout you give it under Linux
     LDFLAGS="-Wl,-E $LDFLAGS" # needed for nse-C-module support
     ;;
   *-apple-darwin*)
diff --git a/nmap_config.h.in b/nmap_config.h.in
index 4e57c5f55..fa47ebccd 100644
--- a/nmap_config.h.in
+++ b/nmap_config.h.in
@@ -93,8 +93,6 @@
 #ifndef CONFIG_H
 #define CONFIG_H
 
-#undef PCAP_TIMEOUT_IGNORED
-
 #undef HAVE_STRUCT_IP
 
 #undef HAVE_NANOSLEEP