diff --git a/python/src/META-INF/python-core-common.xml b/python/src/META-INF/python-core-common.xml
index 22eaa4acff34..ef66e76a77e2 100644
--- a/python/src/META-INF/python-core-common.xml
+++ b/python/src/META-INF/python-core-common.xml
@@ -384,7 +384,7 @@
     <localInspection language="Python" shortName="PyTypeCheckerInspection" suppressId="PyTypeChecker" displayName="Type checker" groupKey="INSP.GROUP.python" enabledByDefault="true"  level="WARNING" implementationClass="com.jetbrains.python.inspections.PyTypeCheckerInspection"/>
     <localInspection language="Python" shortName="PyDeprecationInspection" suppressId="PyDeprecation" displayName="Deprecated function, class or module" groupKey="INSP.GROUP.python" enabledByDefault="true"  level="WARNING" implementationClass="com.jetbrains.python.inspections.PyDeprecationInspection"/>
     <localInspection language="Python" shortName="PyMandatoryEncodingInspection" suppressId="PyMandatoryEncoding" displayName="No encoding specified for file" groupKey="INSP.GROUP.python" enabledByDefault="false"  level="WARNING" implementationClass="com.jetbrains.python.inspections.PyMandatoryEncodingInspection"/>
-    <localInspection language="Python" shortName="PyPackageRequirementsInspection" suppressId="PyPackageRequirements" bundle="com.jetbrains.python.PyBundle" key="INSP.NAME.requirements" groupKey="INSP.GROUP.python" enabledByDefault="true"  level="WARNING" implementationClass="com.jetbrains.python.inspections.PyPackageRequirementsInspection"/>
+    <localInspection shortName="PyPackageRequirementsInspection" suppressId="PyPackageRequirements" bundle="com.jetbrains.python.PyBundle" key="INSP.NAME.requirements" groupKey="INSP.GROUP.python" enabledByDefault="true"  level="WARNING" implementationClass="com.jetbrains.python.inspections.PyPackageRequirementsInspection"/>
     <localInspection language="Python" shortName="PyPep8Inspection" suppressId="PyPep8" displayName="PEP 8 coding style violation" groupKey="INSP.GROUP.python" enabledByDefault="true" level="WEAK WARNING" implementationClass="com.jetbrains.python.inspections.PyPep8Inspection"/>
     <localInspection language="Python" shortName="PyAttributeOutsideInitInspection" suppressId="PyAttributeOutsideInit" displayName="Instance attribute defined outside __init__" groupKey="INSP.GROUP.python" enabledByDefault="true" level="WEAK WARNING" implementationClass="com.jetbrains.python.inspections.PyAttributeOutsideInitInspection"/>
     <localInspection language="Python" shortName="PyClassHasNoInitInspection" suppressId="PyClassHasNoInit" displayName="Class has no __init__ method" groupKey="INSP.GROUP.python" enabledByDefault="true" level="WEAK WARNING" implementationClass="com.jetbrains.python.inspections.PyClassHasNoInitInspection"/>
diff --git a/python/src/com/jetbrains/python/inspections/PyPackageRequirementsInspection.java b/python/src/com/jetbrains/python/inspections/PyPackageRequirementsInspection.java
index 16a543172ce1..5f7ccda53484 100644
--- a/python/src/com/jetbrains/python/inspections/PyPackageRequirementsInspection.java
+++ b/python/src/com/jetbrains/python/inspections/PyPackageRequirementsInspection.java
@@ -88,11 +88,19 @@ public class PyPackageRequirementsInspection extends PyInspection {
 
     @Override
     public void visitPyFile(PyFile node) {
-      final Module module = ModuleUtilCore.findModuleForPsiElement(node);
-      if (module != null) {
-        if (isRunningPackagingTasks(module)) {
-          return;
-        }
+      checkPackagesHaveBeenInstalled(node, ModuleUtilCore.findModuleForPsiElement(node));
+    }
+
+    @Override
+    public void visitPlainTextFile(PsiPlainTextFile file) {
+      final Module module = ModuleUtilCore.findModuleForPsiElement(file);
+      if (module != null && file.getVirtualFile().equals(PyPackageUtil.findRequirementsTxt(module))) {
+        checkPackagesHaveBeenInstalled(file, module);
+      }
+    }
+
+    private void checkPackagesHaveBeenInstalled(@NotNull PsiElement file, @Nullable Module module) {
+      if (module != null && !isRunningPackagingTasks(module)) {
         final Sdk sdk = PythonSdkType.findPythonSdk(module);
         if (sdk != null) {
           final List<PyRequirement> unsatisfied = findUnsatisfiedRequirements(module, sdk, myIgnoredPackages);
@@ -109,7 +117,7 @@ public class PyPackageRequirementsInspection extends PyInspection {
             final List<LocalQuickFix> quickFixes = new ArrayList<>();
             quickFixes.add(new PyInstallRequirementsFix(null, module, sdk, unsatisfied));
             quickFixes.add(new IgnoreRequirementFix(unsatisfiedNames));
-            registerProblem(node, msg,
+            registerProblem(file, msg,
                             ProblemHighlightType.GENERIC_ERROR_OR_WARNING, null,
                             quickFixes.toArray(new LocalQuickFix[quickFixes.size()]));
           }