diff --git a/src/config.c b/src/config.c
index 876d1864f..0ec46ee19 100644
--- a/src/config.c
+++ b/src/config.c
@@ -333,19 +333,6 @@ void read_FTLconf(void)
 	else
 		logg("   PARSE_ARP_CACHE: Inactive");
 
-	// REGEX_IGNORECASE
-	// defaults to: false
-	config.regex_ignorecase = false;
-	buffer = parse_FTLconf(fp, "REGEX_IGNORECASE");
-
-	if(buffer != NULL && strcasecmp(buffer, "true") == 0)
-		config.regex_ignorecase = true;
-
-	if(config.regex_ignorecase)
-		logg("   REGEX_IGNORECASE: Enabled. Regex is case insensitive");
-	else
-		logg("   REGEX_IGNORECASE: Disabled. Regex is case sensitive");
-
 	// CNAME_DEEP_INSPECT
 	// defaults to: true
 	config.cname_inspection = true;
diff --git a/src/config.h b/src/config.h
index 01448cd7e..a10c9de7e 100644
--- a/src/config.h
+++ b/src/config.h
@@ -37,7 +37,6 @@ typedef struct {
 	bool analyze_only_A_AAAA;
 	bool DBimport;
 	bool parse_arp_cache;
-	bool regex_ignorecase;
 	bool cname_inspection;
 } ConfigStruct;
 
diff --git a/src/regex.c b/src/regex.c
index 2b5a7d0a1..da94f2ac0 100644
--- a/src/regex.c
+++ b/src/regex.c
@@ -30,9 +30,9 @@ static char **regexbuffer[2] = { NULL };
 
 const char *regextype[] = { "blacklist", "whitelist" };
 
+// Log Regex failure (most likely a regex syntax error, we include a hint to the error)
 static void log_regex_error(const int errcode, const int index, const unsigned char regexid, const char *regexin)
 {
-	// Regex failed for some reason (probably user syntax error)
 	// Get error string and log it
 	const size_t length = regerror(errcode, &regex[regexid][index], NULL, 0);
 	char *buffer = calloc(length,sizeof(char));
@@ -41,14 +41,13 @@ static void log_regex_error(const int errcode, const int index, const unsigned c
 	free(buffer);
 }
 
+/* Compile regular expressions into data structures that can be used with
+   regexec() to match against a string */
 static bool compile_regex(const char *regexin, const int index, const unsigned char regexid)
 {
-	// compile regular expressions into data structures that
-	// can be used with regexec to match against a string
-	int regflags = REG_EXTENDED;
-	if(config.regex_ignorecase)
-		regflags |= REG_ICASE;
-	const int errcode = regcomp(&regex[regexid][index], regexin, regflags);
+	// We use the extended RegEx flavor (ERE) and specify that matching should
+	// always be case INsensitive
+	const int errcode = regcomp(&regex[regexid][index], regexin, REG_EXTENDED | REG_ICASE);
 	if(errcode != 0)
 	{
 		log_regex_error(errcode, index, regexid, regexin);