diff --git a/src/http_act.c b/src/http_act.c
index 134c903..2af4d47 100644
--- a/src/http_act.c
+++ b/src/http_act.c
@@ -215,8 +215,23 @@
 		goto fail_alloc;
 
 	switch ((enum act_normalize_uri) rule->action) {
-		case ACT_NORMALIZE_URI_PLACEHOLDER:
-			(void) uri;
+		case ACT_NORMALIZE_URI_MERGE_SLASHES: {
+			const struct ist path = http_get_path(uri);
+			struct ist newpath = ist2(replace->area, replace->size);
+
+			if (!isttest(path))
+				goto leave;
+
+			err = uri_normalizer_path_merge_slashes(iststop(path, '?'), &newpath);
+
+			if (err != URI_NORMALIZER_ERR_NONE)
+				break;
+
+			if (!http_replace_req_path(htx, newpath, 0))
+				goto fail_rewrite;
+
+			break;
+		}
 	}
 
 	switch (err) {
@@ -277,8 +292,10 @@
 		return ACT_RET_PRS_ERR;
 	}
 
-	if (0) {
+	if (strcmp(args[cur_arg], "merge-slashes") == 0) {
+		cur_arg++;
 
+		rule->action = ACT_NORMALIZE_URI_MERGE_SLASHES;
 	}
 	else {
 		memprintf(err, "unknown normalizer '%s'", args[cur_arg]);
diff --git a/src/uri_normalizer.c b/src/uri_normalizer.c
index 7db47d1..abc029b 100644
--- a/src/uri_normalizer.c
+++ b/src/uri_normalizer.c
@@ -10,9 +10,48 @@
  *
  */
 
+#include <import/ist.h>
+
 #include <haproxy/api.h>
 #include <haproxy/uri_normalizer.h>
 
+/* Merges adjacent slashes in the given path. */
+enum uri_normalizer_err uri_normalizer_path_merge_slashes(const struct ist path, struct ist *dst)
+{
+	enum uri_normalizer_err err;
+
+	const size_t size = istclear(dst);
+	struct ist newpath = *dst;
+
+	struct ist scanner = path;
+
+	/* The path will either be shortened or have the same length. */
+	if (size < istlen(path)) {
+		err = URI_NORMALIZER_ERR_ALLOC;
+		goto fail;
+	}
+
+	while (istlen(scanner) > 0) {
+		const char current = istshift(&scanner);
+
+		if (current == '/') {
+			while (istlen(scanner) > 0 && *istptr(scanner) == '/')
+				scanner = istnext(scanner);
+		}
+
+		newpath = __istappend(newpath, current);
+	}
+
+	*dst = newpath;
+
+	return URI_NORMALIZER_ERR_NONE;
+
+  fail:
+
+	return err;
+}
+
+
 /*
  * Local variables:
  *  c-indent-level: 8