diff --git a/src/main/java/net/irisshaders/iris/shaderpack/parsing/ParsedString.java b/src/main/java/net/irisshaders/iris/shaderpack/parsing/ParsedString.java
index dfad869035..7014d57de6 100644
--- a/src/main/java/net/irisshaders/iris/shaderpack/parsing/ParsedString.java
+++ b/src/main/java/net/irisshaders/iris/shaderpack/parsing/ParsedString.java
@@ -104,11 +104,18 @@ public String takeNumber() {
 				if (!Character.isDigit(text.charAt(position)) && !Character.isDigit(text.charAt(position + 1))) {
 					break;
 				}
+			} else if (!Character.isDigit(text.charAt(position))) {
+				break;
 			}
 
 			position++;
 		}
 
+		// take any f float suffixes, if we have a number
+		if (position > 0 && position + 1 < text.length() && (text.charAt(position) == 'f' || text.charAt(position) == 'F')) {
+			position++;
+		}
+
 		try {
 			Float.parseFloat(text.substring(0, position));
 		} catch (Exception e) {