diff --git a/src/m_misc.c b/src/m_misc.c
index d97383385..847f24905 100644
--- a/src/m_misc.c
+++ b/src/m_misc.c
@@ -1784,6 +1784,7 @@ char *M_GetToken(const char *inputString)
 			|| stringToUse[startPos] == '\n'
 			|| stringToUse[startPos] == '\0'
 			|| stringToUse[startPos] == '"' // we're treating this as whitespace because SLADE likes adding it for no good reason
+			|| stringToUse[startPos] == '=' || stringToUse[startPos] == ';' // UDMF TEXTMAP.
 			|| inComment != 0)
 			&& startPos < stringLength)
 	{
@@ -1852,6 +1853,7 @@ char *M_GetToken(const char *inputString)
 			&& stringToUse[endPos] != '{'
 			&& stringToUse[endPos] != '}'
 			&& stringToUse[endPos] != '"' // see above
+			&& stringToUse[endPos] != '=' && stringToUse[endPos] != ';' // UDMF TEXTMAP.
 			&& inComment == 0)
 			&& endPos < stringLength)
 	{