diff --git a/src/dumm/cowfs.h b/src/dumm/cowfs.h
index b9334dc96..6869e3563 100644
--- a/src/dumm/cowfs.h
+++ b/src/dumm/cowfs.h
@@ -64,7 +64,7 @@ struct cowfs_t {
  * @param master		read only master file system directory
  * @param host			copy on write host directory
  * @param mount			mountpoint where union is mounted
- * @return				instance, or NULL if FUSE initalization failed
+ * @return				instance, or NULL if FUSE initialization failed
  */
 cowfs_t *cowfs_create(char *master, char *host, char *mount);
 
diff --git a/src/libstrongswan/fetcher/fetcher_manager.c b/src/libstrongswan/fetcher/fetcher_manager.c
index 21cd1aff4..2fad486e0 100644
--- a/src/libstrongswan/fetcher/fetcher_manager.c
+++ b/src/libstrongswan/fetcher/fetcher_manager.c
@@ -43,7 +43,7 @@ struct private_fetcher_manager_t {
 };
 
 typedef struct {
-	/** assocaited fetcher construction function */
+	/** associated fetcher construction function */
 	fetcher_constructor_t create;
 	/** URL this fetcher support */
 	char *url;
diff --git a/src/libstrongswan/tests/test_suite.c b/src/libstrongswan/tests/test_suite.c
index 6a4c7b96b..0f2e74b7c 100644
--- a/src/libstrongswan/tests/test_suite.c
+++ b/src/libstrongswan/tests/test_suite.c
@@ -26,12 +26,12 @@
 static char failure_buf[512];
 
 /**
- * Source file failure occured
+ * Source file failure occurred
  */
 static const char *failure_file;
 
 /**
- * Line of source file failure occured
+ * Line of source file failure occurred
  */
 static int failure_line;
 
diff --git a/src/libstrongswan/utils/utils.h b/src/libstrongswan/utils/utils.h
index 7e4bfb2de..5cd0a34b1 100644
--- a/src/libstrongswan/utils/utils.h
+++ b/src/libstrongswan/utils/utils.h
@@ -472,7 +472,7 @@ void *memstr(const void *haystack, const char *needle, size_t n);
 char *translate(char *str, const char *from, const char *to);
 
 /**
- * Replaces all occurences of search in the given string with replace.
+ * Replaces all occurrences of search in the given string with replace.
  *
  * Allocates memory only if anything is replaced in the string.  The original
  * string is also returned if any of the arguments are invalid (e.g. if search
@@ -480,7 +480,7 @@ char *translate(char *str, const char *from, const char *to);
  *
  * @param str		original string
  * @param search	string to search for and replace
- * @param replace	string to replace found occurences with
+ * @param replace	string to replace found occurrences with
  * @return			allocated string, if anything got replaced, str otherwise
  */
 char *strreplace(const char *str, const char *search, const char *replace);
@@ -515,7 +515,7 @@ const char *safe_strerror(int errnum);
 /**
  * Close open file descriptors greater than or equal to lowfd.
  *
- * @param lowfd		start closing file descriptoros from here
+ * @param lowfd		start closing file descriptors from here
  */
 void closefrom(int lowfd);
 #endif