diff --git a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/build/CBuildConfiguration.java b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/build/CBuildConfiguration.java
index 00635d77df6..5fb9f7bf575 100644
--- a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/build/CBuildConfiguration.java
+++ b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/build/CBuildConfiguration.java
@@ -448,7 +448,7 @@ public abstract class CBuildConfiguration extends PlatformObject implements ICBu
 			String[] path = pathStr.split(File.pathSeparator);
 			for (String dir : path) {
 				Path commandPath = Paths.get(dir, command);
-				if (Files.exists(commandPath)) {
+				if (Files.exists(commandPath) && Files.isRegularFile(commandPath)) {
 					return commandPath;
 				} else {
 					if (Platform.getOS().equals(Platform.OS_WIN32)