diff --git a/Makefile b/Makefile
index 6fd1b2492..665557cfb 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 
 
 # rule for making release
-RNAME = mtex-5.0.beta3
+RNAME = mtex-5.0.beta4
 RDIR = ../releases
 release:
 	rm -rf $(RDIR)/$(RNAME)*
diff --git a/VERSION b/VERSION
index c1007cb66..b3361aaa9 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
- MTEX 5.0.beta.3
+ MTEX 5.0.beta.4
diff --git a/geometry/@quaternion/log.m b/geometry/@quaternion/log.m
index 3c1503ee2..430e379f9 100644
--- a/geometry/@quaternion/log.m
+++ b/geometry/@quaternion/log.m
@@ -4,7 +4,7 @@
 % Syntax
 %   v = log(q)       % tangential vector as vector3d
 %   v = log(q,q_ref) % tangential vector as vector3d
-%   M = logMat(q) % return tangential vector as (skew symmetric) matrix
+%   M = logm(q) % return tangential vector as (skew symmetric) matrix
 %
 % Input
 %  q - @quaternion