diff --git a/.travis.yml b/.travis.yml
index be213e1..8aee6e2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -39,7 +39,7 @@ addons:
 
 script:
   - ./autogen.sh
-#  CFI doesn't work out on Ubuntu 14.04 (Trusty). They dont't include LLVMgold.so for clang-3.8.
+#  CFI doesn't work out on Ubuntu 14.04 (Trusty). They don't include LLVMgold.so for clang-3.8.
 #  clang-3.4 doesn't know CFI yet.
 #  The only chance with Travis-CI is to switch to docker and use Ubuntu 16.04 or whatever.
 #  - if [[ $CC == "gcc" ]]; then CFI=""; else CFI="--enable-cfi"; fi
diff --git a/docs/libpsl/Makefile.am b/docs/libpsl/Makefile.am
index 9812d70..369e757 100644
--- a/docs/libpsl/Makefile.am
+++ b/docs/libpsl/Makefile.am
@@ -68,7 +68,7 @@ HTML_IMAGES=
 # e.g. content_files=running.sgml building.sgml changes-2.0.sgml
 content_files=
 
-# SGML files where gtk-doc abbrevations (#GtkWidget) are expanded
+# SGML files where gtk-doc abbreviations (#GtkWidget) are expanded
 # These files must be listed here *and* in content_files
 # e.g. expand_content_files=running.sgml
 expand_content_files=
diff --git a/src/psl-make-dafsa b/src/psl-make-dafsa
index b569310..8f5bb76 100755
--- a/src/psl-make-dafsa
+++ b/src/psl-make-dafsa
@@ -448,7 +448,7 @@ def encode_prefix(label):
   """Encodes a node label as a list of bytes without a trailing high byte.
 
   This method encodes a node if there is exactly one child  and the
-  child follows immidiately after so that no jump is needed. This label
+  child follows immediately after so that no jump is needed. This label
   will then be a prefix to the label in the child node.
   """
   assert label
diff --git a/tools/psl.1 b/tools/psl.1
index 96bda99..079d53b 100644
--- a/tools/psl.1
+++ b/tools/psl.1
@@ -22,7 +22,7 @@ Returned data: 1 if the \fIdomain\fR is a public suffix, 0 otherwise.
 .br
 This option can be combined with \fB\-\-no\-star\-rule\fR.  It's use will
 switch off the PSL 'prevailing star rule' so that all TLDs not
-explictly listed in the PSL will return 0 (not a public suffix).
+explicitly listed in the PSL will return 0 (not a public suffix).
 .TP
 \fB\-\-is\-cookie\-domain\-acceptable\fR <cookie\-domain>
 check if cookie\-domain is acceptable for domains.